[{"volume":26,"author":[{"last_name":"Roeder","id":"88149","full_name":"Roeder, Franz","first_name":"Franz"},{"first_name":"Abira","last_name":"Gnanavel","full_name":"Gnanavel, Abira"},{"last_name":"Pollmann","id":"78890","full_name":"Pollmann, René","first_name":"René"},{"first_name":"Olga","full_name":"Brecht, Olga","last_name":"Brecht"},{"first_name":"Michael","last_name":"Stefszky","id":"42777","full_name":"Stefszky, Michael"},{"full_name":"Padberg, Laura","id":"40300","last_name":"Padberg","first_name":"Laura"},{"id":"13244","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"},{"first_name":"Benjamin","id":"27150","full_name":"Brecht, Benjamin","last_name":"Brecht","orcid":"0000-0003-4140-0556 "}],"date_created":"2024-12-27T19:01:14Z","date_updated":"2025-12-19T11:36:36Z","publisher":"IOP Publishing","doi":"10.1088/1367-2630/ad9f98","title":"Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared","issue":"12","publication_identifier":{"issn":["1367-2630"]},"publication_status":"published","intvolume":"        26","citation":{"short":"F. Roeder, A. Gnanavel, R. Pollmann, O. Brecht, M. Stefszky, L. Padberg, C. Eigner, C. Silberhorn, B. Brecht, New Journal of Physics 26 (2024).","bibtex":"@article{Roeder_Gnanavel_Pollmann_Brecht_Stefszky_Padberg_Eigner_Silberhorn_Brecht_2024, title={Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared}, volume={26}, DOI={<a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">10.1088/1367-2630/ad9f98</a>}, number={12123025}, journal={New Journal of Physics}, publisher={IOP Publishing}, author={Roeder, Franz and Gnanavel, Abira and Pollmann, René and Brecht, Olga and Stefszky, Michael and Padberg, Laura and Eigner, Christof and Silberhorn, Christine and Brecht, Benjamin}, year={2024} }","mla":"Roeder, Franz, et al. “Ultra-Broadband Non-Degenerate Guided-Wave Bi-Photon Source in the near and Mid-Infrared.” <i>New Journal of Physics</i>, vol. 26, no. 12, 123025, IOP Publishing, 2024, doi:<a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">10.1088/1367-2630/ad9f98</a>.","apa":"Roeder, F., Gnanavel, A., Pollmann, R., Brecht, O., Stefszky, M., Padberg, L., Eigner, C., Silberhorn, C., &#38; Brecht, B. (2024). Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared. <i>New Journal of Physics</i>, <i>26</i>(12), Article 123025. <a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">https://doi.org/10.1088/1367-2630/ad9f98</a>","chicago":"Roeder, Franz, Abira Gnanavel, René Pollmann, Olga Brecht, Michael Stefszky, Laura Padberg, Christof Eigner, Christine Silberhorn, and Benjamin Brecht. “Ultra-Broadband Non-Degenerate Guided-Wave Bi-Photon Source in the near and Mid-Infrared.” <i>New Journal of Physics</i> 26, no. 12 (2024). <a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">https://doi.org/10.1088/1367-2630/ad9f98</a>.","ieee":"F. Roeder <i>et al.</i>, “Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared,” <i>New Journal of Physics</i>, vol. 26, no. 12, Art. no. 123025, 2024, doi: <a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">10.1088/1367-2630/ad9f98</a>.","ama":"Roeder F, Gnanavel A, Pollmann R, et al. Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared. <i>New Journal of Physics</i>. 2024;26(12). doi:<a href=\"https://doi.org/10.1088/1367-2630/ad9f98\">10.1088/1367-2630/ad9f98</a>"},"year":"2024","department":[{"_id":"288"},{"_id":"623"},{"_id":"15"}],"user_id":"78890","_id":"57862","project":[{"_id":"571","name":"MIRAQLS: MIRAQLS: Mid-infrared Quantum Technology for Sensing"},{"_id":"190","name":"E2TPA: Exploiting Entangled Two-Photon Absorption"}],"language":[{"iso":"eng"}],"article_number":"123025","article_type":"original","publication":"New Journal of Physics","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"The latest applications in ultrafast quantum metrology require bright, broadband bi-photon sources with one of the photons in the mid-infrared and the other in the visible to near infrared. However, existing sources based on bulk crystals are limited in brightness due to the short interaction length and only allow for limited dispersion engineering. Here, we present an integrated PDC source based on a Ti:LiNbO3 waveguide that generates broadband bi-photons with central wavelengths at 860 nm and 2800 nm. Their spectral bandwidth exceeds 25 THz and is achieved by simultaneous matching of the group velocities (GVs) and cancellation of GV dispersion for the signal and idler field. We provide an intuitive understanding of the process by studying our source’s behavior at different temperatures and pump wavelengths, which agrees well with simulations."}]},{"year":"2023","issue":"32","title":"Improved Hardness Results for the Guided Local Hamiltonian Problem","date_created":"2022-07-22T12:32:40Z","abstract":[{"text":"Estimating the ground state energy of a local Hamiltonian is a central\r\nproblem in quantum chemistry. In order to further investigate its complexity\r\nand the potential of quantum algorithms for quantum chemistry, Gharibian and Le\r\nGall (STOC 2022) recently introduced the guided local Hamiltonian problem\r\n(GLH), which is a variant of the local Hamiltonian problem where an\r\napproximation of a ground state is given as an additional input. Gharibian and\r\nLe Gall showed quantum advantage (more precisely, BQP-completeness) for GLH\r\nwith $6$-local Hamiltonians when the guiding vector has overlap\r\n(inverse-polynomially) close to 1/2 with a ground state. In this paper, we\r\noptimally improve both the locality and the overlap parameters: we show that\r\nthis quantum advantage (BQP-completeness) persists even with 2-local\r\nHamiltonians, and even when the guiding vector has overlap\r\n(inverse-polynomially) close to 1 with a ground state. Moreover, we show that\r\nthe quantum advantage also holds for 2-local physically motivated Hamiltonians\r\non a 2D square lattice. This makes a further step towards establishing\r\npractical quantum advantage in quantum chemistry.","lang":"eng"}],"publication":"Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)","language":[{"iso":"eng"}],"external_id":{"arxiv":["2207.10250"]},"citation":{"bibtex":"@inproceedings{Gharibian_Hayakawa_Gall_Morimae_2023, title={Improved Hardness Results for the Guided Local Hamiltonian Problem}, volume={261}, DOI={<a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">10.4230/LIPIcs.ICALP.2023.32</a>}, number={32}, booktitle={Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)}, author={Gharibian, Sevag and Hayakawa, Ryu and Gall, François Le and Morimae, Tomoyuki}, year={2023}, pages={1–19} }","mla":"Gharibian, Sevag, et al. “Improved Hardness Results for the Guided Local Hamiltonian Problem.” <i>Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)</i>, vol. 261, no. 32, 2023, pp. 1–19, doi:<a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">10.4230/LIPIcs.ICALP.2023.32</a>.","short":"S. Gharibian, R. Hayakawa, F.L. Gall, T. Morimae, in: Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP), 2023, pp. 1–19.","apa":"Gharibian, S., Hayakawa, R., Gall, F. L., &#38; Morimae, T. (2023). Improved Hardness Results for the Guided Local Hamiltonian Problem. <i>Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)</i>, <i>261</i>(32), 1–19. <a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">https://doi.org/10.4230/LIPIcs.ICALP.2023.32</a>","chicago":"Gharibian, Sevag, Ryu Hayakawa, François Le Gall, and Tomoyuki Morimae. “Improved Hardness Results for the Guided Local Hamiltonian Problem.” In <i>Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)</i>, 261:1–19, 2023. <a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">https://doi.org/10.4230/LIPIcs.ICALP.2023.32</a>.","ieee":"S. Gharibian, R. Hayakawa, F. L. Gall, and T. Morimae, “Improved Hardness Results for the Guided Local Hamiltonian Problem,” in <i>Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)</i>, 2023, vol. 261, no. 32, pp. 1–19, doi: <a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">10.4230/LIPIcs.ICALP.2023.32</a>.","ama":"Gharibian S, Hayakawa R, Gall FL, Morimae T. Improved Hardness Results for the Guided Local Hamiltonian Problem. In: <i>Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP)</i>. Vol 261. ; 2023:1-19. doi:<a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2023.32\">10.4230/LIPIcs.ICALP.2023.32</a>"},"intvolume":"       261","page":"1-19","publication_status":"published","doi":"10.4230/LIPIcs.ICALP.2023.32","author":[{"last_name":"Gharibian","orcid":"0000-0002-9992-3379","id":"71541","full_name":"Gharibian, Sevag","first_name":"Sevag"},{"last_name":"Hayakawa","full_name":"Hayakawa, Ryu","first_name":"Ryu"},{"first_name":"François Le","last_name":"Gall","full_name":"Gall, François Le"},{"first_name":"Tomoyuki","last_name":"Morimae","full_name":"Morimae, Tomoyuki"}],"volume":261,"date_updated":"2023-10-09T04:17:10Z","status":"public","type":"conference","user_id":"71541","department":[{"_id":"623"},{"_id":"7"}],"_id":"32407"},{"year":"2023","citation":{"apa":"Peitz, S., Hunstig, A., Rose, H., &#38; Meier, T. (2023). <i>Accelerating the analysis of optical quantum systems using the Koopman operator</i>.","short":"S. Peitz, A. Hunstig, H. Rose, T. Meier, (2023).","bibtex":"@article{Peitz_Hunstig_Rose_Meier_2023, title={Accelerating the analysis of optical quantum systems using the Koopman operator}, author={Peitz, Sebastian and Hunstig, Anna and Rose, Hendrik and Meier, Torsten}, year={2023} }","mla":"Peitz, Sebastian, et al. <i>Accelerating the Analysis of Optical Quantum Systems Using the Koopman Operator</i>. 2023.","ama":"Peitz S, Hunstig A, Rose H, Meier T. Accelerating the analysis of optical quantum systems using the Koopman operator. Published online 2023.","chicago":"Peitz, Sebastian, Anna Hunstig, Hendrik Rose, and Torsten Meier. “Accelerating the Analysis of Optical Quantum Systems Using the Koopman Operator,” 2023.","ieee":"S. Peitz, A. Hunstig, H. Rose, and T. Meier, “Accelerating the analysis of optical quantum systems using the Koopman operator.” 2023."},"date_updated":"2023-10-27T10:05:07Z","oa":"1","date_created":"2023-10-27T09:40:59Z","author":[{"first_name":"Sebastian","orcid":"0000-0002-3389-793X","last_name":"Peitz","full_name":"Peitz, Sebastian","id":"47427"},{"last_name":"Hunstig","full_name":"Hunstig, Anna","first_name":"Anna"},{"first_name":"Hendrik","id":"55958","full_name":"Rose, Hendrik","orcid":"0000-0002-3079-5428","last_name":"Rose"},{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"}],"title":"Accelerating the analysis of optical quantum systems using the Koopman operator","main_file_link":[{"url":"https://arxiv.org/pdf/2310.16578.pdf","open_access":"1"}],"type":"preprint","abstract":[{"lang":"eng","text":"The prediction of photon echoes is an important technique for gaining an understanding of optical quantum systems. However, this requires a large number of simulations with varying parameters and/or input pulses, which renders numerical studies expensive. This article investigates how we can use data-driven surrogate models based on the Koopman operator to accelerate this process. In order to be successful, we require a model that is accurate over a large number of time steps. To this end, we employ a bilinear Koopman model using extended dynamic mode decomposition and simulate the optical Bloch equations for an ensemble of inhomogeneously broadened two-level systems. Such systems are well suited to describe the excitation of excitonic resonances in semiconductor nanostructures, for example, ensembles of semiconductor quantum dots. We perform a detailed study on the required number of system simulations such that the resulting data-driven Koopman model is sufficiently accurate for a wide range of parameter settings. We analyze the L2 error and the relative error of the photon echo peak and investigate how the control positions relate to the stabilization. After proper training, the dynamics of the quantum ensemble can be predicted accurately and numerically very efficiently by our methods."}],"status":"public","_id":"48502","user_id":"47427","department":[{"_id":"655"},{"_id":"623"}],"language":[{"iso":"eng"}]},{"keyword":["Atomic and Molecular Physics","and Optics"],"language":[{"iso":"eng"}],"publication":"Optics Express","abstract":[{"text":"<jats:p>We report a titanium indiffused waveguide resonator featuring an integrated electro-optic modulator for cavity length stabilisation that produces close to 5 dB of squeezed light at 1550 nm (2.4 dB directly measured). The resonator is locked on resonance for tens of minutes with 70 mW of SH light incident on the cavity, demonstrating that photorefraction can be mitigated. Squeezed light production concurrent with cavity length stabilisation utilising the integrated EOM is demonstrated. The device demonstrates the suitability of this platform for squeezed light generation in network applications, where stabilisation to the reference field is typically necessary.</jats:p>","lang":"eng"}],"publisher":"Optica Publishing Group","date_created":"2023-10-19T14:22:59Z","title":"Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications","issue":"21","year":"2023","_id":"48349","department":[{"_id":"288"},{"_id":"623"}],"user_id":"42777","article_number":"34903","type":"journal_article","status":"public","date_updated":"2023-11-02T09:26:42Z","volume":31,"author":[{"first_name":"M.","full_name":"Stefszky, M.","last_name":"Stefszky"},{"last_name":"vom Bruch","full_name":"vom Bruch, F.","first_name":"F."},{"first_name":"M.","last_name":"Santandrea","full_name":"Santandrea, M."},{"last_name":"Ricken","full_name":"Ricken, R.","first_name":"R."},{"full_name":"Quiring, V.","last_name":"Quiring","first_name":"V."},{"first_name":"C.","full_name":"Eigner, C.","last_name":"Eigner"},{"first_name":"H","full_name":"Herrmann, H","last_name":"Herrmann"},{"first_name":"C","full_name":"Silberhorn, C","last_name":"Silberhorn"}],"doi":"10.1364/oe.498423","publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","intvolume":"        31","citation":{"bibtex":"@article{Stefszky_vom Bruch_Santandrea_Ricken_Quiring_Eigner_Herrmann_Silberhorn_2023, title={Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications}, volume={31}, DOI={<a href=\"https://doi.org/10.1364/oe.498423\">10.1364/oe.498423</a>}, number={2134903}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Stefszky, M. and vom Bruch, F. and Santandrea, M. and Ricken, R. and Quiring, V. and Eigner, C. and Herrmann, H and Silberhorn, C}, year={2023} }","short":"M. Stefszky, F. vom Bruch, M. Santandrea, R. Ricken, V. Quiring, C. Eigner, H. Herrmann, C. Silberhorn, Optics Express 31 (2023).","mla":"Stefszky, M., et al. “Lithium Niobate Waveguide Squeezer with Integrated Cavity Length Stabilisation for Network Applications.” <i>Optics Express</i>, vol. 31, no. 21, 34903, Optica Publishing Group, 2023, doi:<a href=\"https://doi.org/10.1364/oe.498423\">10.1364/oe.498423</a>.","apa":"Stefszky, M., vom Bruch, F., Santandrea, M., Ricken, R., Quiring, V., Eigner, C., Herrmann, H., &#38; Silberhorn, C. (2023). Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications. <i>Optics Express</i>, <i>31</i>(21), Article 34903. <a href=\"https://doi.org/10.1364/oe.498423\">https://doi.org/10.1364/oe.498423</a>","chicago":"Stefszky, M., F. vom Bruch, M. Santandrea, R. Ricken, V. Quiring, C. Eigner, H Herrmann, and C Silberhorn. “Lithium Niobate Waveguide Squeezer with Integrated Cavity Length Stabilisation for Network Applications.” <i>Optics Express</i> 31, no. 21 (2023). <a href=\"https://doi.org/10.1364/oe.498423\">https://doi.org/10.1364/oe.498423</a>.","ieee":"M. Stefszky <i>et al.</i>, “Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications,” <i>Optics Express</i>, vol. 31, no. 21, Art. no. 34903, 2023, doi: <a href=\"https://doi.org/10.1364/oe.498423\">10.1364/oe.498423</a>.","ama":"Stefszky M, vom Bruch F, Santandrea M, et al. Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications. <i>Optics Express</i>. 2023;31(21). doi:<a href=\"https://doi.org/10.1364/oe.498423\">10.1364/oe.498423</a>"}},{"keyword":["tet_topic_qd"],"language":[{"iso":"eng"}],"abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade commonly used in quantum‐dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work, it focuses on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. It achieves this goal by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum‐dot cavity excitation dynamics with full access to photon properties. It reports non‐trivial dependencies on system parameters and use the predictive power of the combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>","lang":"eng"}],"publication":"Advanced Quantum Technologies","title":"On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs","publisher":"Wiley","date_created":"2023-11-03T10:07:38Z","year":"2023","project":[{"grant_number":"231447078","name":"TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen (C09*)","_id":"173"},{"grant_number":"231447078","name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)","_id":"167"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"48599","user_id":"158","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"623"}],"status":"public","type":"journal_article","main_file_link":[{"open_access":"1","url":"https://onlinelibrary.wiley.com/doi/10.1002/qute.202300142"}],"doi":"10.1002/qute.202300142","oa":"1","date_updated":"2023-12-21T10:41:17Z","author":[{"last_name":"Bauch","full_name":"Bauch, David","first_name":"David"},{"first_name":"Dustin","full_name":"Siebert, Dustin","last_name":"Siebert"},{"first_name":"Klaus","last_name":"Jöns","id":"85353","full_name":"Jöns, Klaus"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158","full_name":"Förstner, Jens"},{"first_name":"Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher","full_name":"Schumacher, Stefan","id":"27271"}],"citation":{"apa":"Bauch, D., Siebert, D., Jöns, K., Förstner, J., &#38; Schumacher, S. (2023). On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>. <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>","short":"D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, Advanced Quantum Technologies (2023).","bibtex":"@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, DOI={<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>}, journal={Advanced Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }","mla":"Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>.","ama":"Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>","chicago":"Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, 2023. <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>.","ieee":"D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” <i>Advanced Quantum Technologies</i>, 2023, doi: <a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>."},"publication_status":"published","publication_identifier":{"issn":["2511-9044","2511-9044"]},"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"43246"}]}},{"year":"2023","citation":{"ama":"Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs. Published online 2023.","chicago":"Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher. “On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using Tailored Cavity Designs,” 2023.","ieee":"D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs.” 2023.","apa":"Bauch, D., Siebert, D., Jöns, K., Förstner, J., &#38; Schumacher, S. (2023). <i>On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs</i>.","mla":"Bauch, David, et al. <i>On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using Tailored Cavity Designs</i>. 2023.","bibtex":"@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }","short":"D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, (2023)."},"related_material":{"record":[{"relation":"later_version","id":"48599","status":"public"}]},"title":"On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs","main_file_link":[{"open_access":"1","url":"https://arxiv.org/pdf/2303.13871.pdf"}],"date_updated":"2023-12-21T10:41:17Z","oa":"1","author":[{"full_name":"Bauch, David","last_name":"Bauch","first_name":"David"},{"first_name":"Dustin","last_name":"Siebert","full_name":"Siebert, Dustin"},{"last_name":"Jöns","full_name":"Jöns, Klaus","id":"85353","first_name":"Klaus"},{"full_name":"Förstner, Jens","id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens"},{"first_name":"Stefan","id":"27271","full_name":"Schumacher, Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher"}],"date_created":"2023-03-31T13:22:05Z","abstract":[{"text":"The biexciton-exciton emission cascade commonly used in quantum-dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work we focus on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishibility. We achieve this goal by selectively reducing the biexciton lifetime with an optical resonator. We demonstrate that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and two-fold degenerate optical modes. Our in-depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum-dot cavity excitation dynamics with full access to photon properties. We report non-trivial dependencies on system parameters and use the predictive power of our combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values in the telecom C-band at $1550\\,\\mathrm{nm}$.","lang":"eng"}],"status":"public","type":"preprint","keyword":["tet_topic_phc","tet_topic_qd"],"language":[{"iso":"eng"}],"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"grant_number":"231447078","name":"TRR 142 - C09: TRR 142 - Subproject C09","_id":"173"},{"grant_number":"231447078","_id":"167","name":"TRR 142 - B06: TRR 142 - Subproject B06"},{"grant_number":"231447078","name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"}],"_id":"43246","user_id":"16199","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"623"},{"_id":"15"},{"_id":"35"},{"_id":"170"},{"_id":"297"}]},{"publication":"Communications in Mathematical Physics","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Given a geometrically finite hyperbolic surface of infinite volume it is a\r\nclassical result of Patterson that the positive Laplace-Beltrami operator has\r\nno $L^2$-eigenvalues $\\geq 1/4$. In this article we prove a generalization of\r\nthis result for the joint $L^2$-eigenvalues of the algebra of commuting\r\ndifferential operators on Riemannian locally symmetric spaces $\\Gamma\\backslash\r\nG/K$ of higher rank. We derive dynamical assumptions on the $\\Gamma$-action on\r\nthe geodesic and the Satake compactifications which imply the absence of the\r\ncorresponding principal eigenvalues. A large class of examples fulfilling these\r\nassumptions are the non-compact quotients by Anosov subgroups."}],"department":[{"_id":"10"},{"_id":"548"},{"_id":"623"}],"user_id":"49178","_id":"31189","external_id":{"arxiv":["2205.03167"]},"language":[{"iso":"eng"}],"publication_identifier":{"unknown":["1275-1295"]},"intvolume":"       403","citation":{"chicago":"Weich, Tobias, and Lasse Lennart Wolf. “Absence of Principal Eigenvalues for Higher Rank Locally Symmetric  Spaces.” <i>Communications in Mathematical Physics</i> 403 (2023). <a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>.","ieee":"T. Weich and L. L. Wolf, “Absence of principal eigenvalues for higher rank locally symmetric  spaces,” <i>Communications in Mathematical Physics</i>, vol. 403, 2023, doi: <a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>.","ama":"Weich T, Wolf LL. Absence of principal eigenvalues for higher rank locally symmetric  spaces. <i>Communications in Mathematical Physics</i>. 2023;403. doi:<a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>","apa":"Weich, T., &#38; Wolf, L. L. (2023). Absence of principal eigenvalues for higher rank locally symmetric  spaces. <i>Communications in Mathematical Physics</i>, <i>403</i>. <a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>","mla":"Weich, Tobias, and Lasse Lennart Wolf. “Absence of Principal Eigenvalues for Higher Rank Locally Symmetric  Spaces.” <i>Communications in Mathematical Physics</i>, vol. 403, 2023, doi:<a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>.","bibtex":"@article{Weich_Wolf_2023, title={Absence of principal eigenvalues for higher rank locally symmetric  spaces}, volume={403}, DOI={<a href=\"https://doi.org/10.1007/s00220-023-04819-1\">https://doi.org/10.1007/s00220-023-04819-1</a>}, journal={Communications in Mathematical Physics}, author={Weich, Tobias and Wolf, Lasse Lennart}, year={2023} }","short":"T. Weich, L.L. Wolf, Communications in Mathematical Physics 403 (2023)."},"year":"2023","volume":403,"author":[{"first_name":"Tobias","last_name":"Weich","orcid":"0000-0002-9648-6919","full_name":"Weich, Tobias","id":"49178"},{"last_name":"Wolf","full_name":"Wolf, Lasse Lennart","id":"45027","first_name":"Lasse Lennart"}],"date_created":"2022-05-11T10:38:11Z","date_updated":"2024-02-06T20:52:40Z","doi":"https://doi.org/10.1007/s00220-023-04819-1","title":"Absence of principal eigenvalues for higher rank locally symmetric  spaces"},{"year":"2023","citation":{"ama":"Schütte P, Weich T. Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions. <i>arXiv:230813463</i>. Published online 2023.","chicago":"Schütte, Philipp, and Tobias Weich. “Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions.” <i>ArXiv:2308.13463</i>, 2023.","ieee":"P. Schütte and T. Weich, “Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions,” <i>arXiv:2308.13463</i>. 2023.","apa":"Schütte, P., &#38; Weich, T. (2023). Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions. In <i>arXiv:2308.13463</i>.","mla":"Schütte, Philipp, and Tobias Weich. “Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions.” <i>ArXiv:2308.13463</i>, 2023.","short":"P. Schütte, T. Weich, ArXiv:2308.13463 (2023).","bibtex":"@article{Schütte_Weich_2023, title={Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions}, journal={arXiv:2308.13463}, author={Schütte, Philipp and Weich, Tobias}, year={2023} }"},"title":"Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces  -- A Numerical Algorithm via Weighted Zeta Functions","date_updated":"2024-02-11T19:56:01Z","date_created":"2024-02-06T20:58:35Z","author":[{"first_name":"Philipp","id":"50168","full_name":"Schütte, Philipp","last_name":"Schütte"},{"orcid":"0000-0002-9648-6919","last_name":"Weich","full_name":"Weich, Tobias","id":"49178","first_name":"Tobias"}],"abstract":[{"text":"We present a numerical algorithm for the computation of invariant Ruelle\r\ndistributions on convex co-compact hyperbolic surfaces. This is achieved by\r\nexploiting the connection between invariant Ruelle distributions and residues\r\nof meromorphically continued weighted zeta functions established by the authors\r\ntogether with Barkhofen (2021). To make this applicable for numerics we express\r\nthe weighted zeta as the logarithmic derivative of a suitable parameter\r\ndependent Fredholm determinant similar to Borthwick (2014). As an additional\r\ndifficulty our transfer operator has to include a contracting direction which\r\nwe account for with techniques developed by Rugh (1992). We achieve a further\r\nimprovement in convergence speed for our algorithm in the case of surfaces with\r\nadditional symmetries by proving and applying a symmetry reduction of weighted\r\nzeta functions.","lang":"eng"}],"status":"public","type":"preprint","publication":"arXiv:2308.13463","language":[{"iso":"eng"}],"_id":"51206","external_id":{"arxiv":["2308.13463"]},"user_id":"49178","department":[{"_id":"10"},{"_id":"623"},{"_id":"548"}]},{"type":"journal_article","status":"public","user_id":"30525","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"project":[{"grant_number":"231447078","name":"TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen (B09*)","_id":"170"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53","grant_number":"231447078"}],"_id":"49607","funded_apc":"1","article_type":"original","publication_status":"published","publication_identifier":{"issn":["2330-4022","2330-4022"]},"citation":{"ama":"Liu B, Geromel R, Su Z, et al. Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design. <i>ACS Photonics</i>. 2023;10(12):4357-4366. doi:<a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">10.1021/acsphotonics.3c01163</a>","ieee":"B. Liu <i>et al.</i>, “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design,” <i>ACS Photonics</i>, vol. 10, no. 12, pp. 4357–4366, 2023, doi: <a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">10.1021/acsphotonics.3c01163</a>.","chicago":"Liu, Bingyi, René Geromel, Zhaoxian Su, Kai Guo, Yongtian Wang, Zhongyi Guo, Lingling Huang, and Thomas Zentgraf. “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design.” <i>ACS Photonics</i> 10, no. 12 (2023): 4357–66. <a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">https://doi.org/10.1021/acsphotonics.3c01163</a>.","bibtex":"@article{Liu_Geromel_Su_Guo_Wang_Guo_Huang_Zentgraf_2023, title={Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design}, volume={10}, DOI={<a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">10.1021/acsphotonics.3c01163</a>}, number={12}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Liu, Bingyi and Geromel, René and Su, Zhaoxian and Guo, Kai and Wang, Yongtian and Guo, Zhongyi and Huang, Lingling and Zentgraf, Thomas}, year={2023}, pages={4357–4366} }","short":"B. Liu, R. Geromel, Z. Su, K. Guo, Y. Wang, Z. Guo, L. Huang, T. Zentgraf, ACS Photonics 10 (2023) 4357–4366.","mla":"Liu, Bingyi, et al. “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design.” <i>ACS Photonics</i>, vol. 10, no. 12, American Chemical Society (ACS), 2023, pp. 4357–66, doi:<a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">10.1021/acsphotonics.3c01163</a>.","apa":"Liu, B., Geromel, R., Su, Z., Guo, K., Wang, Y., Guo, Z., Huang, L., &#38; Zentgraf, T. (2023). Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design. <i>ACS Photonics</i>, <i>10</i>(12), 4357–4366. <a href=\"https://doi.org/10.1021/acsphotonics.3c01163\">https://doi.org/10.1021/acsphotonics.3c01163</a>"},"intvolume":"        10","page":"4357-4366","author":[{"first_name":"Bingyi","last_name":"Liu","full_name":"Liu, Bingyi"},{"full_name":"Geromel, René","last_name":"Geromel","first_name":"René"},{"last_name":"Su","full_name":"Su, Zhaoxian","first_name":"Zhaoxian"},{"last_name":"Guo","full_name":"Guo, Kai","first_name":"Kai"},{"first_name":"Yongtian","full_name":"Wang, Yongtian","last_name":"Wang"},{"first_name":"Zhongyi","last_name":"Guo","full_name":"Guo, Zhongyi"},{"full_name":"Huang, Lingling","last_name":"Huang","first_name":"Lingling"},{"id":"30525","full_name":"Zentgraf, Thomas","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas"}],"volume":10,"oa":"1","date_updated":"2024-04-16T06:47:40Z","main_file_link":[{"open_access":"1","url":"https://pubs.acs.org/doi/full/10.1021/acsphotonics.3c01163"}],"doi":"10.1021/acsphotonics.3c01163","publication":"ACS Photonics","abstract":[{"text":"In this work, we utilize thin dielectric meta-atoms placed on a silver substrate to efficiently enhance and manipulate the third-harmonic generation. We theoretically and experimentally reveal that when the structural symmetry of the meta-atom is incompatible with the lattice symmetry of an array, some generalized nonlinear geometric phases appear, which offers new possibilities for harmonic generation control beyond the accessible symmetries governed by the selection rule. The underlying mechanism is attributed to the modified rotation of the effective principal axis of a dense meta-atom array, where the strong coupling among the units gives rise to a generalized linear geometric phase modulation of the pump light. Therefore, nonlinear geometric phases carried by third-harmonic emissions are the natural result of the wave-mixing process among the modes excited at the fundamental frequency. This mechanism further points out a new strategy to predict the nonlinear geometric phases delivered by the nanostructures according to their linear responses. Our design is simple and efficient and offers alternatives for the nonlinear meta-devices that are capable of flexible photon generation and manipulation.","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Biotechnology","Electronic","Optical and Magnetic Materials"],"issue":"12","quality_controlled":"1","year":"2023","date_created":"2023-12-13T14:11:41Z","publisher":"American Chemical Society (ACS)","title":"Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design"},{"status":"public","publication":"ACS Photonics","type":"journal_article","language":[{"iso":"eng"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"429"},{"_id":"230"},{"_id":"623"}],"user_id":"16199","_id":"55901","project":[{"_id":"53","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","grant_number":"231447078"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"grant_number":"231447078","name":"TRR 142 - A02: TRR 142 - Nichtlineare Spektroskopie von Halbleiter-Nanostrukturen mit Quantenlicht (A02)","_id":"59"},{"_id":"697","name":"PhoQS: PhoQS-Projekt: Quantenunterstützte Sensorsysteme"}],"intvolume":"        10","page":"3161-3170","citation":{"apa":"Grisard, S., Trifonov, A. V., Rose, H., Reichhardt, R., Reichelt, M., Schneider, C., Kamp, M., Höfling, S., Bayer, M., Meier, T., &#38; Akimov, I. A. (2023). Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots. <i>ACS Photonics</i>, <i>10</i>(9), 3161–3170. <a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">https://doi.org/10.1021/acsphotonics.3c00530</a>","mla":"Grisard, Stefan, et al. “Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots.” <i>ACS Photonics</i>, vol. 10, no. 9, American Chemical Society (ACS), 2023, pp. 3161–70, doi:<a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">10.1021/acsphotonics.3c00530</a>.","short":"S. Grisard, A.V. Trifonov, H. Rose, R. Reichhardt, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, I.A. Akimov, ACS Photonics 10 (2023) 3161–3170.","bibtex":"@article{Grisard_Trifonov_Rose_Reichhardt_Reichelt_Schneider_Kamp_Höfling_Bayer_Meier_et al._2023, title={Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots}, volume={10}, DOI={<a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">10.1021/acsphotonics.3c00530</a>}, number={9}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Grisard, Stefan and Trifonov, Artur V. and Rose, Hendrik and Reichhardt, Rilana and Reichelt, Matthias and Schneider, Christian and Kamp, Martin and Höfling, Sven and Bayer, Manfred and Meier, Torsten and et al.}, year={2023}, pages={3161–3170} }","chicago":"Grisard, Stefan, Artur V. Trifonov, Hendrik Rose, Rilana Reichhardt, Matthias Reichelt, Christian Schneider, Martin Kamp, et al. “Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots.” <i>ACS Photonics</i> 10, no. 9 (2023): 3161–70. <a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">https://doi.org/10.1021/acsphotonics.3c00530</a>.","ieee":"S. Grisard <i>et al.</i>, “Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots,” <i>ACS Photonics</i>, vol. 10, no. 9, pp. 3161–3170, 2023, doi: <a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">10.1021/acsphotonics.3c00530</a>.","ama":"Grisard S, Trifonov AV, Rose H, et al. Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots. <i>ACS Photonics</i>. 2023;10(9):3161-3170. doi:<a href=\"https://doi.org/10.1021/acsphotonics.3c00530\">10.1021/acsphotonics.3c00530</a>"},"year":"2023","issue":"9","publication_identifier":{"issn":["2330-4022","2330-4022"]},"publication_status":"published","doi":"10.1021/acsphotonics.3c00530","title":"Temporal Sorting of Optical Multiwave-Mixing Processes in Semiconductor Quantum Dots","volume":10,"author":[{"full_name":"Grisard, Stefan","last_name":"Grisard","first_name":"Stefan"},{"full_name":"Trifonov, Artur V.","last_name":"Trifonov","first_name":"Artur V."},{"first_name":"Hendrik","id":"55958","full_name":"Rose, Hendrik","orcid":"0000-0002-3079-5428","last_name":"Rose"},{"last_name":"Reichhardt","full_name":"Reichhardt, Rilana","first_name":"Rilana"},{"id":"138","full_name":"Reichelt, Matthias","last_name":"Reichelt","first_name":"Matthias"},{"full_name":"Schneider, Christian","last_name":"Schneider","first_name":"Christian"},{"first_name":"Martin","full_name":"Kamp, Martin","last_name":"Kamp"},{"full_name":"Höfling, Sven","last_name":"Höfling","first_name":"Sven"},{"first_name":"Manfred","last_name":"Bayer","full_name":"Bayer, Manfred"},{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344"},{"full_name":"Akimov, Ilya A.","last_name":"Akimov","first_name":"Ilya A."}],"date_created":"2024-08-30T04:57:10Z","date_updated":"2024-08-30T04:59:47Z","publisher":"American Chemical Society (ACS)"},{"language":[{"iso":"eng"}],"keyword":["General Physics and Astronomy"],"article_number":"014072","department":[{"_id":"15"},{"_id":"623"}],"user_id":"27150","_id":"42158","project":[{"name":"TRR 142 - C01: TRR 142 - Subproject C01","_id":"71"}],"status":"public","publication":"Physical Review Applied","type":"journal_article","doi":"10.1103/physrevapplied.19.014072","title":"Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras","volume":19,"date_created":"2023-02-15T10:50:17Z","author":[{"full_name":"Lüders, Carolin","last_name":"Lüders","first_name":"Carolin"},{"full_name":"Gil-Lopez, Jano","last_name":"Gil-Lopez","first_name":"Jano"},{"full_name":"Allgaier, Markus","last_name":"Allgaier","first_name":"Markus"},{"full_name":"Brecht, Benjamin","id":"27150","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","first_name":"Benjamin"},{"last_name":"Aßmann","full_name":"Aßmann, Marc","first_name":"Marc"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"},{"last_name":"Bayer","full_name":"Bayer, Manfred","first_name":"Manfred"}],"date_updated":"2023-02-15T10:51:33Z","publisher":"American Physical Society (APS)","intvolume":"        19","citation":{"apa":"Lüders, C., Gil-Lopez, J., Allgaier, M., Brecht, B., Aßmann, M., Silberhorn, C., &#38; Bayer, M. (2023). Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras. <i>Physical Review Applied</i>, <i>19</i>(1), Article 014072. <a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">https://doi.org/10.1103/physrevapplied.19.014072</a>","mla":"Lüders, Carolin, et al. “Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras.” <i>Physical Review Applied</i>, vol. 19, no. 1, 014072, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">10.1103/physrevapplied.19.014072</a>.","short":"C. Lüders, J. Gil-Lopez, M. Allgaier, B. Brecht, M. Aßmann, C. Silberhorn, M. Bayer, Physical Review Applied 19 (2023).","bibtex":"@article{Lüders_Gil-Lopez_Allgaier_Brecht_Aßmann_Silberhorn_Bayer_2023, title={Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras}, volume={19}, DOI={<a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">10.1103/physrevapplied.19.014072</a>}, number={1014072}, journal={Physical Review Applied}, publisher={American Physical Society (APS)}, author={Lüders, Carolin and Gil-Lopez, Jano and Allgaier, Markus and Brecht, Benjamin and Aßmann, Marc and Silberhorn, Christine and Bayer, Manfred}, year={2023} }","ama":"Lüders C, Gil-Lopez J, Allgaier M, et al. Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras. <i>Physical Review Applied</i>. 2023;19(1). doi:<a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">10.1103/physrevapplied.19.014072</a>","ieee":"C. Lüders <i>et al.</i>, “Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras,” <i>Physical Review Applied</i>, vol. 19, no. 1, Art. no. 014072, 2023, doi: <a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">10.1103/physrevapplied.19.014072</a>.","chicago":"Lüders, Carolin, Jano Gil-Lopez, Markus Allgaier, Benjamin Brecht, Marc Aßmann, Christine Silberhorn, and Manfred Bayer. “Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras.” <i>Physical Review Applied</i> 19, no. 1 (2023). <a href=\"https://doi.org/10.1103/physrevapplied.19.014072\">https://doi.org/10.1103/physrevapplied.19.014072</a>."},"year":"2023","issue":"1","publication_identifier":{"issn":["2331-7019"]},"publication_status":"published"},{"publication":"14th Innovations in Theoretical Computer Science (ITCS)","abstract":[{"text":"Savitch's theorem states that NPSPACE computations can be simulated in\r\nPSPACE. We initiate the study of a quantum analogue of NPSPACE, denoted\r\nStreaming-QCMASPACE (SQCMASPACE), where an exponentially long classical proof\r\nis streamed to a poly-space quantum verifier. Besides two main results, we also\r\nshow that a quantum analogue of Savitch's theorem is unlikely to hold, as\r\nSQCMASPACE=NEXP. For completeness, we introduce Streaming-QMASPACE (SQMASPACE)\r\nwith an exponentially long streamed quantum proof, and show SQMASPACE=QMA_EXP\r\n(quantum analogue of NEXP). Our first main result shows, in contrast to the\r\nclassical setting, the solution space of a quantum constraint satisfaction\r\nproblem (i.e. a local Hamiltonian) is always connected when exponentially long\r\nproofs are permitted. For this, we show how to simulate any Lipschitz\r\ncontinuous path on the unit hypersphere via a sequence of local unitary gates,\r\nat the expense of blowing up the circuit size. This shows quantum\r\nerror-correcting codes can be unable to detect one codeword erroneously\r\nevolving to another if the evolution happens sufficiently slowly, and answers\r\nan open question of [Gharibian, Sikora, ICALP 2015] regarding the Ground State\r\nConnectivity problem. Our second main result is that any SQCMASPACE computation\r\ncan be embedded into \"unentanglement\", i.e. into a quantum constraint\r\nsatisfaction problem with unentangled provers. Formally, we show how to embed\r\nSQCMASPACE into the Sparse Separable Hamiltonian problem of [Chailloux,\r\nSattath, CCC 2012] (QMA(2)-complete for 1/poly promise gap), at the expense of\r\nscaling the promise gap with the streamed proof size. As a corollary, we obtain\r\nthe first systematic construction for obtaining QMA(2)-type upper bounds on\r\narbitrary multi-prover interactive proof systems, where the QMA(2) promise gap\r\nscales exponentially with the number of bits of communication in the\r\ninteractive proof.","lang":"eng"}],"external_id":{"arxiv":["2206.05243"]},"language":[{"iso":"eng"}],"year":"2023","date_created":"2022-06-13T14:40:46Z","title":"Quantum space, ground space traversal, and how to embed multi-prover  interactive proofs into unentanglement","type":"conference","status":"public","_id":"31872","user_id":"71541","department":[{"_id":"623"},{"_id":"7"}],"publication_status":"published","citation":{"ama":"Gharibian S, Rudolph D. Quantum space, ground space traversal, and how to embed multi-prover  interactive proofs into unentanglement. In: <i>14th Innovations in Theoretical Computer Science (ITCS)</i>. Vol 251. ; 2023:53:1-53:23. doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">10.4230/LIPIcs.ITCS.2023.53</a>","chicago":"Gharibian, Sevag, and Dorian Rudolph. “Quantum Space, Ground Space Traversal, and How to Embed Multi-Prover  Interactive Proofs into Unentanglement.” In <i>14th Innovations in Theoretical Computer Science (ITCS)</i>, 251:53:1-53:23, 2023. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">https://doi.org/10.4230/LIPIcs.ITCS.2023.53</a>.","ieee":"S. Gharibian and D. Rudolph, “Quantum space, ground space traversal, and how to embed multi-prover  interactive proofs into unentanglement,” in <i>14th Innovations in Theoretical Computer Science (ITCS)</i>, 2023, vol. 251, p. 53:1-53:23, doi: <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">10.4230/LIPIcs.ITCS.2023.53</a>.","bibtex":"@inproceedings{Gharibian_Rudolph_2023, title={Quantum space, ground space traversal, and how to embed multi-prover  interactive proofs into unentanglement}, volume={251}, DOI={<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">10.4230/LIPIcs.ITCS.2023.53</a>}, booktitle={14th Innovations in Theoretical Computer Science (ITCS)}, author={Gharibian, Sevag and Rudolph, Dorian}, year={2023}, pages={53:1-53:23} }","mla":"Gharibian, Sevag, and Dorian Rudolph. “Quantum Space, Ground Space Traversal, and How to Embed Multi-Prover  Interactive Proofs into Unentanglement.” <i>14th Innovations in Theoretical Computer Science (ITCS)</i>, vol. 251, 2023, p. 53:1-53:23, doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">10.4230/LIPIcs.ITCS.2023.53</a>.","short":"S. Gharibian, D. Rudolph, in: 14th Innovations in Theoretical Computer Science (ITCS), 2023, p. 53:1-53:23.","apa":"Gharibian, S., &#38; Rudolph, D. (2023). Quantum space, ground space traversal, and how to embed multi-prover  interactive proofs into unentanglement. <i>14th Innovations in Theoretical Computer Science (ITCS)</i>, <i>251</i>, 53:1-53:23. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2023.53\">https://doi.org/10.4230/LIPIcs.ITCS.2023.53</a>"},"intvolume":"       251","page":"53:1-53:23","date_updated":"2023-02-28T11:06:55Z","author":[{"first_name":"Sevag","last_name":"Gharibian","orcid":"0000-0002-9992-3379","id":"71541","full_name":"Gharibian, Sevag"},{"last_name":"Rudolph","full_name":"Rudolph, Dorian","first_name":"Dorian"}],"volume":251,"doi":"10.4230/LIPIcs.ITCS.2023.53"},{"keyword":["Physics and Astronomy (miscellaneous)"],"language":[{"iso":"eng"}],"publication":"Applied Physics Letters","abstract":[{"text":"The achievement of a flat metasurface has realized extraordinary control over light–matter interaction at the nanoscale, enabling widespread use in imaging, holography, and biophotonics. However, three-dimensional metasurfaces with the potential to provide additional light–matter manipulation flexibility attract only little interest. Here, we demonstrate a three-dimensional metasurface scheme capable of providing dual phase control through out-of-plane plasmonic resonance of L-shape antennas. Under circularly polarized excitation at a specific wavelength, the L-shape antennas with rotating orientation angle act as spatially variant three-dimensional tilted dipoles and are able to generate desire phase delay for different polarization components. Generalized Snell's law is achieved for both in-plane and out-of-plane dipole components through arranging such L-shape antennas into arrays. These three-dimensional metasurfaces suggest a route for wavefront modulation and a variety of nanophotonic applications.","lang":"eng"}],"publisher":"AIP Publishing","date_created":"2023-04-06T06:01:06Z","title":"Three-dimensional dipole momentum analog based on L-shape metasurface","quality_controlled":"1","issue":"14","year":"2023","_id":"43421","user_id":"30525","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"article_number":"141702","article_type":"original","type":"journal_article","status":"public","date_updated":"2023-04-06T06:02:58Z","author":[{"first_name":"Tianyou","last_name":"Li","full_name":"Li, Tianyou"},{"first_name":"Yanjie","full_name":"Chen, Yanjie","last_name":"Chen"},{"first_name":"Yongtian","full_name":"Wang, Yongtian","last_name":"Wang"},{"orcid":"0000-0002-8662-1101","last_name":"Zentgraf","full_name":"Zentgraf, Thomas","id":"30525","first_name":"Thomas"},{"first_name":"Lingling","full_name":"Huang, Lingling","last_name":"Huang"}],"volume":122,"doi":"10.1063/5.0142389","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"citation":{"ieee":"T. Li, Y. Chen, Y. Wang, T. Zentgraf, and L. Huang, “Three-dimensional dipole momentum analog based on L-shape metasurface,” <i>Applied Physics Letters</i>, vol. 122, no. 14, Art. no. 141702, 2023, doi: <a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>.","chicago":"Li, Tianyou, Yanjie Chen, Yongtian Wang, Thomas Zentgraf, and Lingling Huang. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” <i>Applied Physics Letters</i> 122, no. 14 (2023). <a href=\"https://doi.org/10.1063/5.0142389\">https://doi.org/10.1063/5.0142389</a>.","ama":"Li T, Chen Y, Wang Y, Zentgraf T, Huang L. Three-dimensional dipole momentum analog based on L-shape metasurface. <i>Applied Physics Letters</i>. 2023;122(14). doi:<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>","mla":"Li, Tianyou, et al. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” <i>Applied Physics Letters</i>, vol. 122, no. 14, 141702, AIP Publishing, 2023, doi:<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>.","short":"T. Li, Y. Chen, Y. Wang, T. Zentgraf, L. Huang, Applied Physics Letters 122 (2023).","bibtex":"@article{Li_Chen_Wang_Zentgraf_Huang_2023, title={Three-dimensional dipole momentum analog based on L-shape metasurface}, volume={122}, DOI={<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>}, number={14141702}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}, year={2023} }","apa":"Li, T., Chen, Y., Wang, Y., Zentgraf, T., &#38; Huang, L. (2023). Three-dimensional dipole momentum analog based on L-shape metasurface. <i>Applied Physics Letters</i>, <i>122</i>(14), Article 141702. <a href=\"https://doi.org/10.1063/5.0142389\">https://doi.org/10.1063/5.0142389</a>"},"intvolume":"       122"},{"doi":"10.1103/physreva.107.013703","title":"Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field","date_created":"2023-01-18T10:27:21Z","author":[{"orcid":"0000-0002-3079-5428","last_name":"Rose","full_name":"Rose, Hendrik","id":"55958","first_name":"Hendrik"},{"full_name":"Vasil'ev, A. N.","last_name":"Vasil'ev","first_name":"A. N."},{"first_name":"O. V.","full_name":"Tikhonova, O. V.","last_name":"Tikhonova"},{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"last_name":"Sharapova","id":"60286","full_name":"Sharapova, Polina","first_name":"Polina"}],"volume":107,"publisher":"American Physical Society (APS)","date_updated":"2023-04-21T11:06:33Z","citation":{"chicago":"Rose, Hendrik, A. N. Vasil’ev, O. V. Tikhonova, Torsten Meier, and Polina Sharapova. “Quantum-Optical Excitations of Semiconductor Nanostructures in a Microcavity Using a Two-Band Model and a Single-Mode Quantum Field.” <i>Physical Review A</i> 107, no. 1 (2023). <a href=\"https://doi.org/10.1103/physreva.107.013703\">https://doi.org/10.1103/physreva.107.013703</a>.","ieee":"H. Rose, A. N. Vasil’ev, O. V. Tikhonova, T. Meier, and P. Sharapova, “Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field,” <i>Physical Review A</i>, vol. 107, no. 1, Art. no. 013703, 2023, doi: <a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>.","ama":"Rose H, Vasil’ev AN, Tikhonova OV, Meier T, Sharapova P. Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field. <i>Physical Review A</i>. 2023;107(1). doi:<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>","apa":"Rose, H., Vasil’ev, A. N., Tikhonova, O. V., Meier, T., &#38; Sharapova, P. (2023). Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field. <i>Physical Review A</i>, <i>107</i>(1), Article 013703. <a href=\"https://doi.org/10.1103/physreva.107.013703\">https://doi.org/10.1103/physreva.107.013703</a>","bibtex":"@article{Rose_Vasil’ev_Tikhonova_Meier_Sharapova_2023, title={Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field}, volume={107}, DOI={<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>}, number={1013703}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Rose, Hendrik and Vasil’ev, A. N. and Tikhonova, O. V. and Meier, Torsten and Sharapova, Polina}, year={2023} }","mla":"Rose, Hendrik, et al. “Quantum-Optical Excitations of Semiconductor Nanostructures in a Microcavity Using a Two-Band Model and a Single-Mode Quantum Field.” <i>Physical Review A</i>, vol. 107, no. 1, 013703, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>.","short":"H. Rose, A.N. Vasil’ev, O.V. Tikhonova, T. Meier, P. Sharapova, Physical Review A 107 (2023)."},"intvolume":"       107","year":"2023","issue":"1","publication_status":"published","publication_identifier":{"issn":["2469-9926","2469-9934"]},"language":[{"iso":"eng"}],"article_number":"013703","user_id":"16199","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"623"},{"_id":"35"}],"project":[{"_id":"53","name":"TRR 142: TRR 142"},{"name":"TRR 142 - A: TRR 142 - Project Area A","_id":"54"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"59","name":"TRR 142 - A02: TRR 142 - Subproject A02"}],"_id":"37280","status":"public","type":"journal_article","publication":"Physical Review A"},{"publication":"Physical Review A","language":[{"iso":"eng"}],"year":"2023","issue":"4","title":"Entanglement of particles versus entanglement of fields: Independent quantum resources","date_created":"2023-04-18T06:55:59Z","publisher":"American Physical Society (APS)","status":"public","type":"journal_article","article_number":"042420","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"429"},{"_id":"35"}],"user_id":"16199","_id":"44050","project":[{"_id":"53","name":"TRR 142: TRR 142"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"_id":"174","name":"TRR 142 - C10: TRR 142 - Subproject C10"}],"intvolume":"       107","citation":{"ieee":"J. Sperling and E. Agudelo, “Entanglement of particles versus entanglement of fields: Independent quantum resources,” <i>Physical Review A</i>, vol. 107, no. 4, Art. no. 042420, 2023, doi: <a href=\"https://doi.org/10.1103/physreva.107.042420\">10.1103/physreva.107.042420</a>.","chicago":"Sperling, Jan, and Elizabeth Agudelo. “Entanglement of Particles versus Entanglement of Fields: Independent Quantum Resources.” <i>Physical Review A</i> 107, no. 4 (2023). <a href=\"https://doi.org/10.1103/physreva.107.042420\">https://doi.org/10.1103/physreva.107.042420</a>.","ama":"Sperling J, Agudelo E. Entanglement of particles versus entanglement of fields: Independent quantum resources. <i>Physical Review A</i>. 2023;107(4). doi:<a href=\"https://doi.org/10.1103/physreva.107.042420\">10.1103/physreva.107.042420</a>","apa":"Sperling, J., &#38; Agudelo, E. (2023). Entanglement of particles versus entanglement of fields: Independent quantum resources. <i>Physical Review A</i>, <i>107</i>(4), Article 042420. <a href=\"https://doi.org/10.1103/physreva.107.042420\">https://doi.org/10.1103/physreva.107.042420</a>","bibtex":"@article{Sperling_Agudelo_2023, title={Entanglement of particles versus entanglement of fields: Independent quantum resources}, volume={107}, DOI={<a href=\"https://doi.org/10.1103/physreva.107.042420\">10.1103/physreva.107.042420</a>}, number={4042420}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Sperling, Jan and Agudelo, Elizabeth}, year={2023} }","mla":"Sperling, Jan, and Elizabeth Agudelo. “Entanglement of Particles versus Entanglement of Fields: Independent Quantum Resources.” <i>Physical Review A</i>, vol. 107, no. 4, 042420, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physreva.107.042420\">10.1103/physreva.107.042420</a>.","short":"J. Sperling, E. Agudelo, Physical Review A 107 (2023)."},"publication_identifier":{"issn":["2469-9926","2469-9934"]},"publication_status":"published","doi":"10.1103/physreva.107.042420","volume":107,"author":[{"first_name":"Jan","orcid":"0000-0002-5844-3205","last_name":"Sperling","id":"75127","full_name":"Sperling, Jan"},{"first_name":"Elizabeth","last_name":"Agudelo","full_name":"Agudelo, Elizabeth"}],"date_updated":"2023-04-20T15:03:33Z"},{"article_number":"012426","project":[{"name":"TRR 142: TRR 142","_id":"53"}],"_id":"40477","user_id":"16199","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"429"},{"_id":"35"}],"status":"public","type":"journal_article","doi":"10.1103/physreva.107.012426","date_updated":"2023-04-20T15:16:38Z","author":[{"last_name":"Sperling","orcid":"0000-0002-5844-3205","full_name":"Sperling, Jan","id":"75127","first_name":"Jan"},{"first_name":"Ilaria","last_name":"Gianani","full_name":"Gianani, Ilaria"},{"last_name":"Barbieri","full_name":"Barbieri, Marco","first_name":"Marco"},{"first_name":"Elizabeth","last_name":"Agudelo","full_name":"Agudelo, Elizabeth"}],"volume":107,"citation":{"ama":"Sperling J, Gianani I, Barbieri M, Agudelo E. Detector entanglement: Quasidistributions for Bell-state measurements. <i>Physical Review A</i>. 2023;107(1). doi:<a href=\"https://doi.org/10.1103/physreva.107.012426\">10.1103/physreva.107.012426</a>","chicago":"Sperling, Jan, Ilaria Gianani, Marco Barbieri, and Elizabeth Agudelo. “Detector Entanglement: Quasidistributions for Bell-State Measurements.” <i>Physical Review A</i> 107, no. 1 (2023). <a href=\"https://doi.org/10.1103/physreva.107.012426\">https://doi.org/10.1103/physreva.107.012426</a>.","ieee":"J. Sperling, I. Gianani, M. Barbieri, and E. Agudelo, “Detector entanglement: Quasidistributions for Bell-state measurements,” <i>Physical Review A</i>, vol. 107, no. 1, Art. no. 012426, 2023, doi: <a href=\"https://doi.org/10.1103/physreva.107.012426\">10.1103/physreva.107.012426</a>.","apa":"Sperling, J., Gianani, I., Barbieri, M., &#38; Agudelo, E. (2023). Detector entanglement: Quasidistributions for Bell-state measurements. <i>Physical Review A</i>, <i>107</i>(1), Article 012426. <a href=\"https://doi.org/10.1103/physreva.107.012426\">https://doi.org/10.1103/physreva.107.012426</a>","short":"J. Sperling, I. Gianani, M. Barbieri, E. Agudelo, Physical Review A 107 (2023).","bibtex":"@article{Sperling_Gianani_Barbieri_Agudelo_2023, title={Detector entanglement: Quasidistributions for Bell-state measurements}, volume={107}, DOI={<a href=\"https://doi.org/10.1103/physreva.107.012426\">10.1103/physreva.107.012426</a>}, number={1012426}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Sperling, Jan and Gianani, Ilaria and Barbieri, Marco and Agudelo, Elizabeth}, year={2023} }","mla":"Sperling, Jan, et al. “Detector Entanglement: Quasidistributions for Bell-State Measurements.” <i>Physical Review A</i>, vol. 107, no. 1, 012426, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physreva.107.012426\">10.1103/physreva.107.012426</a>."},"intvolume":"       107","publication_status":"published","publication_identifier":{"issn":["2469-9926","2469-9934"]},"language":[{"iso":"eng"}],"publication":"Physical Review A","title":"Detector entanglement: Quasidistributions for Bell-state measurements","publisher":"American Physical Society (APS)","date_created":"2023-01-27T08:43:45Z","year":"2023","issue":"1"},{"publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"issue":"11","year":"2023","citation":{"mla":"Lüders, Carolin, et al. “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.” <i>Physical Review Letters</i>, vol. 130, no. 11, 113601, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physrevlett.130.113601\">10.1103/physrevlett.130.113601</a>.","bibtex":"@article{Lüders_Pukrop_Barkhausen_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2023, title={Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography}, volume={130}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.130.113601\">10.1103/physrevlett.130.113601</a>}, number={11113601}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Lüders, Carolin and Pukrop, Matthias and Barkhausen, Franziska and Rozas, Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan and Schumacher, Stefan and Aßmann, Marc}, year={2023} }","short":"C. Lüders, M. Pukrop, F. Barkhausen, E. Rozas, C. Schneider, S. Höfling, J. Sperling, S. Schumacher, M. Aßmann, Physical Review Letters 130 (2023).","apa":"Lüders, C., Pukrop, M., Barkhausen, F., Rozas, E., Schneider, C., Höfling, S., Sperling, J., Schumacher, S., &#38; Aßmann, M. (2023). Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography. <i>Physical Review Letters</i>, <i>130</i>(11), Article 113601. <a href=\"https://doi.org/10.1103/physrevlett.130.113601\">https://doi.org/10.1103/physrevlett.130.113601</a>","ama":"Lüders C, Pukrop M, Barkhausen F, et al. Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography. <i>Physical Review Letters</i>. 2023;130(11). doi:<a href=\"https://doi.org/10.1103/physrevlett.130.113601\">10.1103/physrevlett.130.113601</a>","chicago":"Lüders, Carolin, Matthias Pukrop, Franziska Barkhausen, Elena Rozas, Christian Schneider, Sven Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.” <i>Physical Review Letters</i> 130, no. 11 (2023). <a href=\"https://doi.org/10.1103/physrevlett.130.113601\">https://doi.org/10.1103/physrevlett.130.113601</a>.","ieee":"C. Lüders <i>et al.</i>, “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography,” <i>Physical Review Letters</i>, vol. 130, no. 11, Art. no. 113601, 2023, doi: <a href=\"https://doi.org/10.1103/physrevlett.130.113601\">10.1103/physrevlett.130.113601</a>."},"intvolume":"       130","date_updated":"2023-04-20T15:28:42Z","publisher":"American Physical Society (APS)","date_created":"2023-03-14T07:50:56Z","author":[{"full_name":"Lüders, Carolin","last_name":"Lüders","first_name":"Carolin"},{"first_name":"Matthias","id":"64535","full_name":"Pukrop, Matthias","last_name":"Pukrop"},{"full_name":"Barkhausen, Franziska","id":"63631","last_name":"Barkhausen","first_name":"Franziska"},{"first_name":"Elena","full_name":"Rozas, Elena","last_name":"Rozas"},{"first_name":"Christian","last_name":"Schneider","full_name":"Schneider, Christian"},{"last_name":"Höfling","full_name":"Höfling, Sven","first_name":"Sven"},{"last_name":"Sperling","orcid":"0000-0002-5844-3205","id":"75127","full_name":"Sperling, Jan","first_name":"Jan"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","id":"27271","orcid":"0000-0003-4042-4951","last_name":"Schumacher"},{"first_name":"Marc","full_name":"Aßmann, Marc","last_name":"Aßmann"}],"volume":130,"title":"Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography","doi":"10.1103/physrevlett.130.113601","type":"journal_article","publication":"Physical Review Letters","status":"public","project":[{"_id":"53","name":"TRR 142: TRR 142"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - C10: TRR 142 - Subproject C10","_id":"174"},{"_id":"173","name":"TRR 142 - C09: TRR 142 - Subproject C09"}],"_id":"42973","user_id":"16199","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"429"},{"_id":"230"},{"_id":"35"},{"_id":"297"}],"article_number":"113601","article_type":"letter_note","keyword":["General Physics and Astronomy"],"language":[{"iso":"eng"}]},{"publication_status":"published","intvolume":"       254","page":"54:1-54:21","citation":{"apa":"Gharibian, S., Watson, J., &#38; Bausch, J. (2023). The Complexity of Translationally Invariant Problems beyond Ground State Energies. <i>Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)</i>, <i>254</i>, 54:1-54:21. <a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>","bibtex":"@inproceedings{Gharibian_Watson_Bausch_2023, title={The Complexity of Translationally Invariant Problems beyond Ground State Energies}, volume={254}, DOI={<a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>}, booktitle={Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)}, author={Gharibian, Sevag and Watson, James and Bausch, Johannes}, year={2023}, pages={54:1-54:21} }","short":"S. Gharibian, J. Watson, J. Bausch, in: Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS), 2023, p. 54:1-54:21.","mla":"Gharibian, Sevag, et al. “The Complexity of Translationally Invariant Problems beyond Ground State Energies.” <i>Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)</i>, vol. 254, 2023, p. 54:1-54:21, doi:<a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>.","ama":"Gharibian S, Watson J, Bausch J. The Complexity of Translationally Invariant Problems beyond Ground State Energies. In: <i>Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)</i>. Vol 254. ; 2023:54:1-54:21. doi:<a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>","ieee":"S. Gharibian, J. Watson, and J. Bausch, “The Complexity of Translationally Invariant Problems beyond Ground State Energies,” in <i>Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)</i>, 2023, vol. 254, p. 54:1-54:21, doi: <a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>.","chicago":"Gharibian, Sevag, James Watson, and Johannes Bausch. “The Complexity of Translationally Invariant Problems beyond Ground State Energies.” In <i>Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)</i>, 254:54:1-54:21, 2023. <a href=\"https://doi.org/10.4230/LIPIcs.STACS.2023.54\">https://doi.org/10.4230/LIPIcs.STACS.2023.54</a>."},"oa":"1","date_updated":"2023-05-04T17:51:23Z","volume":254,"author":[{"orcid":"0000-0002-9992-3379","last_name":"Gharibian","full_name":"Gharibian, Sevag","id":"71541","first_name":"Sevag"},{"first_name":"James","full_name":"Watson, James","last_name":"Watson"},{"first_name":"Johannes","last_name":"Bausch","full_name":"Bausch, Johannes"}],"doi":"https://doi.org/10.4230/LIPIcs.STACS.2023.54","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2012.12717"}],"type":"conference","status":"public","_id":"20841","department":[{"_id":"623"},{"_id":"7"}],"user_id":"71541","year":"2023","date_created":"2020-12-24T14:15:09Z","title":"The Complexity of Translationally Invariant Problems beyond Ground State Energies","publication":"Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS)","external_id":{"arxiv":["2012.12717"]},"language":[{"iso":"eng"}]},{"year":"2023","quality_controlled":"1","issue":"8","title":"Compact Metasurface-Based Optical Pulse-Shaping Device","publisher":"American Chemical Society (ACS)","date_created":"2023-04-18T05:47:22Z","abstract":[{"text":"Dispersion is present in every optical setup and is often an undesired effect, especially in nonlinear-optical experiments where ultrashort laser pulses are needed. Typically, bulky pulse compressors consisting of gratings or prisms are used\r\nto address this issue by precompensating the dispersion of the optical components. However, these devices are only able to compensate for a part of the dispersion (second-order dispersion). Here, we present a compact pulse-shaping device that uses plasmonic metasurfaces to apply an arbitrarily designed spectral phase delay allowing for a full dispersion control. Furthermore, with specific phase encodings, this device can be used to temporally reshape the incident laser pulses into more complex pulse forms such as a double pulse. We verify the performance of our device by using an SHG-FROG measurement setup together with a retrieval algorithm to extract the dispersion that our device applies to an incident laser pulse.","lang":"eng"}],"file":[{"content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2023-04-18T05:50:19Z","date_created":"2023-04-18T05:50:19Z","creator":"zentgraf","file_size":1315966,"file_name":"acs.nanolett.2c04980.pdf","file_id":"44045","access_level":"closed"}],"publication":"Nano Letters","ddc":["530"],"keyword":["Mechanical Engineering","Condensed Matter Physics","General Materials Science","General Chemistry","Bioengineering"],"language":[{"iso":"eng"}],"citation":{"mla":"Geromel, René, et al. “Compact Metasurface-Based Optical Pulse-Shaping Device.” <i>Nano Letters</i>, vol. 23, no. 8, American Chemical Society (ACS), 2023, pp. 3196–201, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">10.1021/acs.nanolett.2c04980</a>.","short":"R. Geromel, P. Georgi, M. Protte, S. Lei, T. Bartley, L. Huang, T. Zentgraf, Nano Letters 23 (2023) 3196–3201.","bibtex":"@article{Geromel_Georgi_Protte_Lei_Bartley_Huang_Zentgraf_2023, title={Compact Metasurface-Based Optical Pulse-Shaping Device}, volume={23}, DOI={<a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">10.1021/acs.nanolett.2c04980</a>}, number={8}, journal={Nano Letters}, publisher={American Chemical Society (ACS)}, author={Geromel, René and Georgi, Philip and Protte, Maximilian and Lei, Shiwei and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, pages={3196–3201} }","apa":"Geromel, R., Georgi, P., Protte, M., Lei, S., Bartley, T., Huang, L., &#38; Zentgraf, T. (2023). Compact Metasurface-Based Optical Pulse-Shaping Device. <i>Nano Letters</i>, <i>23</i>(8), 3196–3201. <a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">https://doi.org/10.1021/acs.nanolett.2c04980</a>","chicago":"Geromel, René, Philip Georgi, Maximilian Protte, Shiwei Lei, Tim Bartley, Lingling Huang, and Thomas Zentgraf. “Compact Metasurface-Based Optical Pulse-Shaping Device.” <i>Nano Letters</i> 23, no. 8 (2023): 3196–3201. <a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">https://doi.org/10.1021/acs.nanolett.2c04980</a>.","ieee":"R. Geromel <i>et al.</i>, “Compact Metasurface-Based Optical Pulse-Shaping Device,” <i>Nano Letters</i>, vol. 23, no. 8, pp. 3196–3201, 2023, doi: <a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">10.1021/acs.nanolett.2c04980</a>.","ama":"Geromel R, Georgi P, Protte M, et al. Compact Metasurface-Based Optical Pulse-Shaping Device. <i>Nano Letters</i>. 2023;23(8):3196-3201. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c04980\">10.1021/acs.nanolett.2c04980</a>"},"page":"3196 - 3201","intvolume":"        23","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["1530-6984","1530-6992"]},"main_file_link":[{"open_access":"1","url":"https://pubs.acs.org/doi/full/10.1021/acs.nanolett.2c04980"}],"doi":"10.1021/acs.nanolett.2c04980","date_updated":"2023-05-12T11:17:51Z","oa":"1","author":[{"first_name":"René","full_name":"Geromel, René","last_name":"Geromel"},{"first_name":"Philip","full_name":"Georgi, Philip","last_name":"Georgi"},{"first_name":"Maximilian","id":"46170","full_name":"Protte, Maximilian","last_name":"Protte"},{"last_name":"Lei","full_name":"Lei, Shiwei","first_name":"Shiwei"},{"last_name":"Bartley","id":"49683","full_name":"Bartley, Tim","first_name":"Tim"},{"first_name":"Lingling","full_name":"Huang, Lingling","last_name":"Huang"},{"id":"30525","full_name":"Zentgraf, Thomas","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas"}],"volume":23,"status":"public","type":"journal_article","article_type":"original","file_date_updated":"2023-04-18T05:50:19Z","funded_apc":"1","project":[{"_id":"53","name":"TRR 142: TRR 142"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"name":"TRR 142 - B09: TRR 142 - Subproject B09","_id":"170"},{"name":"TRR 142 - C07: TRR 142 - Subproject C07","_id":"171"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"}],"_id":"44044","user_id":"30525","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}]},{"_id":"45485","user_id":"27150","department":[{"_id":"15"},{"_id":"58"},{"_id":"623"},{"_id":"230"},{"_id":"288"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"language":[{"iso":"eng"}],"type":"journal_article","publication":"IEEE Photonics Technology Letters","status":"public","date_updated":"2023-06-06T10:13:05Z","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","author":[{"first_name":"Stephan","last_name":"Kruse","full_name":"Kruse, Stephan","id":"38254"},{"id":"88242","full_name":"Serino, Laura","last_name":"Serino","first_name":"Laura"},{"first_name":"Patrick Fabian","last_name":"Folge","id":"88605","full_name":"Folge, Patrick Fabian"},{"first_name":"Dana","full_name":"Echeverria Oviedo, Dana","last_name":"Echeverria Oviedo"},{"first_name":"Abhinandan","full_name":"Bhattacharjee, Abhinandan","last_name":"Bhattacharjee"},{"last_name":"Stefszky","id":"42777","full_name":"Stefszky, Michael","first_name":"Michael"},{"first_name":"J. Christoph","id":"37144","full_name":"Scheytt, J. Christoph","last_name":"Scheytt","orcid":"0000-0002-5950-6618 "},{"first_name":"Benjamin","full_name":"Brecht, Benjamin","id":"27150","orcid":"0000-0003-4140-0556 ","last_name":"Brecht"},{"last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263","first_name":"Christine"}],"date_created":"2023-06-06T10:09:05Z","volume":35,"title":"A Pulsed Lidar System With Ultimate Quantum Range Accuracy","doi":"10.1109/lpt.2023.3277515","publication_status":"published","publication_identifier":{"issn":["1041-1135","1941-0174"]},"issue":"14","year":"2023","citation":{"ieee":"S. Kruse <i>et al.</i>, “A Pulsed Lidar System With Ultimate Quantum Range Accuracy,” <i>IEEE Photonics Technology Letters</i>, vol. 35, no. 14, pp. 769–772, 2023, doi: <a href=\"https://doi.org/10.1109/lpt.2023.3277515\">10.1109/lpt.2023.3277515</a>.","chicago":"Kruse, Stephan, Laura Serino, Patrick Fabian Folge, Dana Echeverria Oviedo, Abhinandan Bhattacharjee, Michael Stefszky, J. Christoph Scheytt, Benjamin Brecht, and Christine Silberhorn. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.” <i>IEEE Photonics Technology Letters</i> 35, no. 14 (2023): 769–72. <a href=\"https://doi.org/10.1109/lpt.2023.3277515\">https://doi.org/10.1109/lpt.2023.3277515</a>.","ama":"Kruse S, Serino L, Folge PF, et al. A Pulsed Lidar System With Ultimate Quantum Range Accuracy. <i>IEEE Photonics Technology Letters</i>. 2023;35(14):769-772. doi:<a href=\"https://doi.org/10.1109/lpt.2023.3277515\">10.1109/lpt.2023.3277515</a>","short":"S. Kruse, L. Serino, P.F. Folge, D. Echeverria Oviedo, A. Bhattacharjee, M. Stefszky, J.C. Scheytt, B. Brecht, C. Silberhorn, IEEE Photonics Technology Letters 35 (2023) 769–772.","mla":"Kruse, Stephan, et al. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.” <i>IEEE Photonics Technology Letters</i>, vol. 35, no. 14, Institute of Electrical and Electronics Engineers (IEEE), 2023, pp. 769–72, doi:<a href=\"https://doi.org/10.1109/lpt.2023.3277515\">10.1109/lpt.2023.3277515</a>.","bibtex":"@article{Kruse_Serino_Folge_Echeverria Oviedo_Bhattacharjee_Stefszky_Scheytt_Brecht_Silberhorn_2023, title={A Pulsed Lidar System With Ultimate Quantum Range Accuracy}, volume={35}, DOI={<a href=\"https://doi.org/10.1109/lpt.2023.3277515\">10.1109/lpt.2023.3277515</a>}, number={14}, journal={IEEE Photonics Technology Letters}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Kruse, Stephan and Serino, Laura and Folge, Patrick Fabian and Echeverria Oviedo, Dana and Bhattacharjee, Abhinandan and Stefszky, Michael and Scheytt, J. Christoph and Brecht, Benjamin and Silberhorn, Christine}, year={2023}, pages={769–772} }","apa":"Kruse, S., Serino, L., Folge, P. F., Echeverria Oviedo, D., Bhattacharjee, A., Stefszky, M., Scheytt, J. C., Brecht, B., &#38; Silberhorn, C. (2023). A Pulsed Lidar System With Ultimate Quantum Range Accuracy. <i>IEEE Photonics Technology Letters</i>, <i>35</i>(14), 769–772. <a href=\"https://doi.org/10.1109/lpt.2023.3277515\">https://doi.org/10.1109/lpt.2023.3277515</a>"},"page":"769-772","intvolume":"        35"}]