[{"title":"Experimental observation of topological quantum criticality","doi":"10.1103/physrevresearch.6.033194","date_updated":"2024-08-22T10:47:57Z","publisher":"American Physical Society (APS)","date_created":"2024-08-22T10:47:06Z","author":[{"id":"48188","full_name":"Barkhofen, Sonja","last_name":"Barkhofen","first_name":"Sonja"},{"first_name":"Syamsundar","last_name":"De","full_name":"De, Syamsundar"},{"last_name":"Sperling","orcid":"0000-0002-5844-3205","id":"75127","full_name":"Sperling, Jan","first_name":"Jan"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"},{"full_name":"Altland, Alexander","last_name":"Altland","first_name":"Alexander"},{"first_name":"Dmitry","last_name":"Bagrets","full_name":"Bagrets, Dmitry"},{"last_name":"Kim","full_name":"Kim, Kun Woo","first_name":"Kun Woo"},{"last_name":"Micklitz","full_name":"Micklitz, Tobias","first_name":"Tobias"}],"volume":6,"year":"2024","citation":{"ama":"Barkhofen S, De S, Sperling J, et al. Experimental observation of topological quantum criticality. <i>Physical Review Research</i>. 2024;6(3). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">10.1103/physrevresearch.6.033194</a>","ieee":"S. Barkhofen <i>et al.</i>, “Experimental observation of topological quantum criticality,” <i>Physical Review Research</i>, vol. 6, no. 3, Art. no. 033194, 2024, doi: <a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">10.1103/physrevresearch.6.033194</a>.","chicago":"Barkhofen, Sonja, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander Altland, Dmitry Bagrets, Kun Woo Kim, and Tobias Micklitz. “Experimental Observation of Topological Quantum Criticality.” <i>Physical Review Research</i> 6, no. 3 (2024). <a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">https://doi.org/10.1103/physrevresearch.6.033194</a>.","apa":"Barkhofen, S., De, S., Sperling, J., Silberhorn, C., Altland, A., Bagrets, D., Kim, K. W., &#38; Micklitz, T. (2024). Experimental observation of topological quantum criticality. <i>Physical Review Research</i>, <i>6</i>(3), Article 033194. <a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">https://doi.org/10.1103/physrevresearch.6.033194</a>","mla":"Barkhofen, Sonja, et al. “Experimental Observation of Topological Quantum Criticality.” <i>Physical Review Research</i>, vol. 6, no. 3, 033194, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">10.1103/physrevresearch.6.033194</a>.","short":"S. Barkhofen, S. De, J. Sperling, C. Silberhorn, A. Altland, D. Bagrets, K.W. Kim, T. Micklitz, Physical Review Research 6 (2024).","bibtex":"@article{Barkhofen_De_Sperling_Silberhorn_Altland_Bagrets_Kim_Micklitz_2024, title={Experimental observation of topological quantum criticality}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.6.033194\">10.1103/physrevresearch.6.033194</a>}, number={3033194}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Barkhofen, Sonja and De, Syamsundar and Sperling, Jan and Silberhorn, Christine and Altland, Alexander and Bagrets, Dmitry and Kim, Kun Woo and Micklitz, Tobias}, year={2024} }"},"intvolume":"         6","publication_status":"published","publication_identifier":{"issn":["2643-1564"]},"issue":"3","article_number":"033194","language":[{"iso":"eng"}],"_id":"55737","user_id":"48188","department":[{"_id":"623"}],"abstract":[{"text":"<jats:p>We report on a photonic simulator of the critical state forming at the quantum phase transition between topologically distinct Anderson insulator phases. We observe a time-staggered profile in the circular photon polarization, which originates from the interplay of a chiral and sublattice symmetry, and has recently been suggested as a signature for topological Anderson criticality within the setup. We discuss the role of statistical detuning from criticality and show that the controlled breaking of phase coherence removes the signal, revealing its origin in quantum coherence.</jats:p>\r\n          <jats:sec>\r\n            <jats:title/>\r\n            <jats:supplementary-material>\r\n              <jats:permissions>\r\n                <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n                <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n            </jats:supplementary-material>\r\n          </jats:sec>","lang":"eng"}],"status":"public","type":"journal_article","publication":"Physical Review Research"},{"publication":"Physical Review Research","type":"journal_article","status":"public","_id":"52876","department":[{"_id":"623"},{"_id":"15"}],"user_id":"48188","keyword":["General Physics and Astronomy"],"article_number":"L012043","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2643-1564"]},"publication_status":"published","issue":"1","year":"2024","intvolume":"         6","citation":{"apa":"Arends, C., Wolf, L. L., Meinecke, J., Barkhofen, S., Weich, T., &#38; Bartley, T. (2024). Decomposing large unitaries into multimode devices of arbitrary size. <i>Physical Review Research</i>, <i>6</i>(1), Article L012043. <a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">https://doi.org/10.1103/physrevresearch.6.l012043</a>","short":"C. Arends, L.L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, T. Bartley, Physical Review Research 6 (2024).","mla":"Arends, Christian, et al. “Decomposing Large Unitaries into Multimode Devices of Arbitrary Size.” <i>Physical Review Research</i>, vol. 6, no. 1, L012043, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">10.1103/physrevresearch.6.l012043</a>.","bibtex":"@article{Arends_Wolf_Meinecke_Barkhofen_Weich_Bartley_2024, title={Decomposing large unitaries into multimode devices of arbitrary size}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">10.1103/physrevresearch.6.l012043</a>}, number={1L012043}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Arends, Christian and Wolf, Lasse Lennart and Meinecke, Jasmin and Barkhofen, Sonja and Weich, Tobias and Bartley, Tim}, year={2024} }","ama":"Arends C, Wolf LL, Meinecke J, Barkhofen S, Weich T, Bartley T. Decomposing large unitaries into multimode devices of arbitrary size. <i>Physical Review Research</i>. 2024;6(1). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">10.1103/physrevresearch.6.l012043</a>","ieee":"C. Arends, L. L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, and T. Bartley, “Decomposing large unitaries into multimode devices of arbitrary size,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. L012043, 2024, doi: <a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">10.1103/physrevresearch.6.l012043</a>.","chicago":"Arends, Christian, Lasse Lennart Wolf, Jasmin Meinecke, Sonja Barkhofen, Tobias Weich, and Tim Bartley. “Decomposing Large Unitaries into Multimode Devices of Arbitrary Size.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href=\"https://doi.org/10.1103/physrevresearch.6.l012043\">https://doi.org/10.1103/physrevresearch.6.l012043</a>."},"publisher":"American Physical Society (APS)","date_updated":"2025-12-04T13:38:49Z","volume":6,"date_created":"2024-03-26T08:52:05Z","author":[{"first_name":"Christian","last_name":"Arends","full_name":"Arends, Christian","id":"43994"},{"full_name":"Wolf, Lasse Lennart","id":"45027","last_name":"Wolf","orcid":"0000-0001-8893-2045","first_name":"Lasse Lennart"},{"full_name":"Meinecke, Jasmin","last_name":"Meinecke","first_name":"Jasmin"},{"last_name":"Barkhofen","id":"48188","full_name":"Barkhofen, Sonja","first_name":"Sonja"},{"first_name":"Tobias","last_name":"Weich","orcid":"0000-0002-9648-6919","full_name":"Weich, Tobias","id":"49178"},{"first_name":"Tim","full_name":"Bartley, Tim","id":"49683","last_name":"Bartley"}],"title":"Decomposing large unitaries into multimode devices of arbitrary size","doi":"10.1103/physrevresearch.6.l012043"},{"publication":"Physical Review Research","abstract":[{"lang":"eng","text":"<jats:p>The ability to apply user-chosen large-scale unitary operations with high fidelity to a quantum state is key to realizing future photonic quantum technologies. Here, we realize the implementation of programmable unitary operations on up to 64 frequency-bin modes. To benchmark the performance of our system, we probe different quantum walk unitary operations, in particular, Grover walks on four-dimensional hypercubes with similarities exceeding 95% and quantum walks with 400 steps on circles and finite lines with similarities of 98%. Our results open a path toward implementing high-quality unitary operations, which can form the basis for applications in complex tasks, such as Gaussian boson sampling.</jats:p>\r\n          <jats:sec>\r\n            <jats:title/>\r\n            <jats:supplementary-material>\r\n              <jats:permissions>\r\n                <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n                <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n            </jats:supplementary-material>\r\n          </jats:sec>"}],"language":[{"iso":"eng"}],"issue":"2","year":"2024","publisher":"American Physical Society (APS)","date_created":"2024-05-14T12:40:48Z","title":"Realization of high-fidelity unitary operations on up to 64 frequency bins","type":"journal_article","status":"public","project":[{"name":"QuPoPCoRN: QUPOPCORN: Quantum Particles on Programmable Complex Reconfigurable Networks","_id":"216"}],"_id":"54288","user_id":"27150","department":[{"_id":"623"},{"_id":"288"},{"_id":"15"}],"article_number":"L022040","publication_status":"published","publication_identifier":{"issn":["2643-1564"]},"citation":{"short":"S. De, V. Ansari, J. Sperling, S. Barkhofen, B. Brecht, C. Silberhorn, Physical Review Research 6 (2024).","mla":"De, Syamsundar, et al. “Realization of High-Fidelity Unitary Operations on up to 64 Frequency Bins.” <i>Physical Review Research</i>, vol. 6, no. 2, L022040, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">10.1103/physrevresearch.6.l022040</a>.","bibtex":"@article{De_Ansari_Sperling_Barkhofen_Brecht_Silberhorn_2024, title={Realization of high-fidelity unitary operations on up to 64 frequency bins}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">10.1103/physrevresearch.6.l022040</a>}, number={2L022040}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={De, Syamsundar and Ansari, Vahid and Sperling, Jan and Barkhofen, Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2024} }","apa":"De, S., Ansari, V., Sperling, J., Barkhofen, S., Brecht, B., &#38; Silberhorn, C. (2024). Realization of high-fidelity unitary operations on up to 64 frequency bins. <i>Physical Review Research</i>, <i>6</i>(2), Article L022040. <a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">https://doi.org/10.1103/physrevresearch.6.l022040</a>","chicago":"De, Syamsundar, Vahid Ansari, Jan Sperling, Sonja Barkhofen, Benjamin Brecht, and Christine Silberhorn. “Realization of High-Fidelity Unitary Operations on up to 64 Frequency Bins.” <i>Physical Review Research</i> 6, no. 2 (2024). <a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">https://doi.org/10.1103/physrevresearch.6.l022040</a>.","ieee":"S. De, V. Ansari, J. Sperling, S. Barkhofen, B. Brecht, and C. Silberhorn, “Realization of high-fidelity unitary operations on up to 64 frequency bins,” <i>Physical Review Research</i>, vol. 6, no. 2, Art. no. L022040, 2024, doi: <a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">10.1103/physrevresearch.6.l022040</a>.","ama":"De S, Ansari V, Sperling J, Barkhofen S, Brecht B, Silberhorn C. Realization of high-fidelity unitary operations on up to 64 frequency bins. <i>Physical Review Research</i>. 2024;6(2). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l022040\">10.1103/physrevresearch.6.l022040</a>"},"intvolume":"         6","date_updated":"2025-12-18T16:14:39Z","author":[{"last_name":"De","full_name":"De, Syamsundar","first_name":"Syamsundar"},{"full_name":"Ansari, Vahid","last_name":"Ansari","first_name":"Vahid"},{"full_name":"Sperling, Jan","id":"75127","orcid":"0000-0002-5844-3205","last_name":"Sperling","first_name":"Jan"},{"first_name":"Sonja","full_name":"Barkhofen, Sonja","id":"48188","last_name":"Barkhofen"},{"first_name":"Benjamin","full_name":"Brecht, Benjamin","id":"27150","orcid":"0000-0003-4140-0556 ","last_name":"Brecht"},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"}],"volume":6,"doi":"10.1103/physrevresearch.6.l022040"},{"language":[{"iso":"eng"}],"user_id":"49178","department":[{"_id":"10"},{"_id":"548"},{"_id":"623"},{"_id":"15"}],"_id":"31059","external_id":{"arxiv":["2112.05791"]},"status":"public","abstract":[{"text":"In this article we prove meromorphic continuation of weighted zeta functions in the framework of open hyperbolic systems by using the meromorphically continued restricted resolvent of Dyatlov and Guillarmou (2016). We obtain a residue formula proving equality between residues of weighted zetas and invariant Ruelle distributions. We combine this equality with results of Guillarmou, Hilgert and Weich (2021) in order to relate the residues to Patterson-Sullivan distributions. Finally we provide proof-of-principle results concerning the numerical calculation of invariant Ruelle distributions for 3-disc scattering systems.","lang":"eng"}],"type":"journal_article","publication":"Communications in Mathematical Physics","doi":"https://doi.org/10.1007/s00220-022-04538-z","title":"Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems","author":[{"first_name":"Philipp","full_name":"Schütte, Philipp","id":"50168","last_name":"Schütte"},{"orcid":"0000-0002-9648-6919","last_name":"Weich","id":"49178","full_name":"Weich, Tobias","first_name":"Tobias"},{"first_name":"Sonja","full_name":"Barkhofen, Sonja","id":"48188","last_name":"Barkhofen"}],"date_created":"2022-05-04T12:27:46Z","volume":398,"date_updated":"2026-02-18T10:41:07Z","citation":{"apa":"Schütte, P., Weich, T., &#38; Barkhofen, S. (2023). Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems. <i>Communications in Mathematical Physics</i>, <i>398</i>, 655–678. <a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>","mla":"Schütte, Philipp, et al. “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems.” <i>Communications in Mathematical Physics</i>, vol. 398, 2023, pp. 655–78, doi:<a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>.","bibtex":"@article{Schütte_Weich_Barkhofen_2023, title={Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems}, volume={398}, DOI={<a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>}, journal={Communications in Mathematical Physics}, author={Schütte, Philipp and Weich, Tobias and Barkhofen, Sonja}, year={2023}, pages={655–678} }","short":"P. Schütte, T. Weich, S. Barkhofen, Communications in Mathematical Physics 398 (2023) 655–678.","chicago":"Schütte, Philipp, Tobias Weich, and Sonja Barkhofen. “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems.” <i>Communications in Mathematical Physics</i> 398 (2023): 655–78. <a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>.","ieee":"P. Schütte, T. Weich, and S. Barkhofen, “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems,” <i>Communications in Mathematical Physics</i>, vol. 398, pp. 655–678, 2023, doi: <a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>.","ama":"Schütte P, Weich T, Barkhofen S. Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems. <i>Communications in Mathematical Physics</i>. 2023;398:655-678. doi:<a href=\"https://doi.org/10.1007/s00220-022-04538-z\">https://doi.org/10.1007/s00220-022-04538-z</a>"},"page":"655-678","intvolume":"       398","year":"2023"},{"publication_status":"published","issue":"1","year":"2023","citation":{"chicago":"Barkhofen, Sonja, Benjamin Brecht, and Christine Silberhorn. “Verschränkung wie am Fließband.” <i>Physik in unserer Zeit</i> 54, no. 1 (2023): 10–11. <a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>.","ieee":"S. Barkhofen, B. Brecht, and C. Silberhorn, “Verschränkung wie am Fließband,” <i>Physik in unserer Zeit</i>, vol. 54, no. 1, pp. 10–11, 2023, doi: <a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>.","ama":"Barkhofen S, Brecht B, Silberhorn C. Verschränkung wie am Fließband. <i>Physik in unserer Zeit</i>. 2023;54(1):10-11. doi:<a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>","short":"S. Barkhofen, B. Brecht, C. Silberhorn, Physik in unserer Zeit 54 (2023) 10–11.","mla":"Barkhofen, Sonja, et al. “Verschränkung wie am Fließband.” <i>Physik in unserer Zeit</i>, vol. 54, no. 1, Wiley, 2023, pp. 10–11, doi:<a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>.","bibtex":"@article{Barkhofen_Brecht_Silberhorn_2023, title={Verschränkung wie am Fließband}, volume={54}, DOI={<a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>}, number={1}, journal={Physik in unserer Zeit}, publisher={Wiley}, author={Barkhofen, Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2023}, pages={10–11} }","apa":"Barkhofen, S., Brecht, B., &#38; Silberhorn, C. (2023). Verschränkung wie am Fließband. <i>Physik in unserer Zeit</i>, <i>54</i>(1), 10–11. <a href=\"https://doi.org/10.1002/piuz.202370107\">https://doi.org/10.1002/piuz.202370107</a>"},"intvolume":"        54","page":"10-11","publisher":"Wiley","date_updated":"2025-12-04T13:36:42Z","date_created":"2023-01-24T08:04:47Z","author":[{"id":"48188","full_name":"Barkhofen, Sonja","last_name":"Barkhofen","first_name":"Sonja"},{"first_name":"Benjamin","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","id":"27150"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"}],"volume":54,"title":"Verschränkung wie am Fließband","doi":"https://doi.org/10.1002/piuz.202370107","type":"journal_article","publication":"Physik in unserer Zeit","status":"public","_id":"38541","user_id":"48188","department":[{"_id":"623"},{"_id":"15"}],"language":[{"iso":"ger"}]},{"volume":98,"author":[{"first_name":"Federico","full_name":"Pegoraro, Federico","id":"88928","last_name":"Pegoraro"},{"first_name":"Philip","full_name":"Held, Philip","id":"68236","last_name":"Held"},{"last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188","first_name":"Sonja"},{"first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht","full_name":"Brecht, Benjamin","id":"27150"},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"}],"oa":"1","date_updated":"2026-01-09T09:49:31Z","doi":"10.1088/1402-4896/acbcaa","main_file_link":[{"open_access":"1","url":"https://iopscience.iop.org/article/10.1088/1402-4896/acbcaa"}],"publication_identifier":{"issn":["0031-8949","1402-4896"]},"publication_status":"published","intvolume":"        98","citation":{"apa":"Pegoraro, F., Held, P., Barkhofen, S., Brecht, B., &#38; Silberhorn, C. (2023). Dynamic conditioning of two particle discrete-time quantum walks. <i>Physica Scripta</i>, <i>98</i>(3), Article 034005. <a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">https://doi.org/10.1088/1402-4896/acbcaa</a>","mla":"Pegoraro, Federico, et al. “Dynamic Conditioning of Two Particle Discrete-Time Quantum Walks.” <i>Physica Scripta</i>, vol. 98, no. 3, 034005, IOP Publishing, 2023, doi:<a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">10.1088/1402-4896/acbcaa</a>.","bibtex":"@article{Pegoraro_Held_Barkhofen_Brecht_Silberhorn_2023, title={Dynamic conditioning of two particle discrete-time quantum walks}, volume={98}, DOI={<a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">10.1088/1402-4896/acbcaa</a>}, number={3034005}, journal={Physica Scripta}, publisher={IOP Publishing}, author={Pegoraro, Federico and Held, Philip and Barkhofen, Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2023} }","short":"F. Pegoraro, P. Held, S. Barkhofen, B. Brecht, C. Silberhorn, Physica Scripta 98 (2023).","ama":"Pegoraro F, Held P, Barkhofen S, Brecht B, Silberhorn C. Dynamic conditioning of two particle discrete-time quantum walks. <i>Physica Scripta</i>. 2023;98(3). doi:<a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">10.1088/1402-4896/acbcaa</a>","chicago":"Pegoraro, Federico, Philip Held, Sonja Barkhofen, Benjamin Brecht, and Christine Silberhorn. “Dynamic Conditioning of Two Particle Discrete-Time Quantum Walks.” <i>Physica Scripta</i> 98, no. 3 (2023). <a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">https://doi.org/10.1088/1402-4896/acbcaa</a>.","ieee":"F. Pegoraro, P. Held, S. Barkhofen, B. Brecht, and C. Silberhorn, “Dynamic conditioning of two particle discrete-time quantum walks,” <i>Physica Scripta</i>, vol. 98, no. 3, Art. no. 034005, 2023, doi: <a href=\"https://doi.org/10.1088/1402-4896/acbcaa\">10.1088/1402-4896/acbcaa</a>."},"department":[{"_id":"623"},{"_id":"15"},{"_id":"288"},{"_id":"169"}],"user_id":"68236","_id":"42648","article_type":"original","article_number":"034005","type":"journal_article","status":"public","date_created":"2023-03-02T09:53:59Z","publisher":"IOP Publishing","title":"Dynamic conditioning of two particle discrete-time quantum walks","issue":"3","year":"2023","language":[{"iso":"eng"}],"publication":"Physica Scripta","abstract":[{"text":"In real photonic quantum systems losses are an unavoidable factor limiting the scalability to many modes and particles, restraining their application in fields as quantum information and communication. For this reason, a considerable amount of engineering effort has been taken in order to improve the quality of particle sources and system components. At the same time, data analysis and collection methods based on post-selection have been used to mitigate the effect of particle losses. This has allowed for investigating experimentally multi-particle evolutions where the observer lacks knowledge about the system's intermediate propagation states. Nonetheless, the fundamental question how losses affect the behaviour of the surviving subset of a multi-particle system has not been investigated so far. For this reason, here we study the impact of particle losses in a quantum walk of two photons reconstructing the output probability distributions for one photon conditioned on the loss of the other in a known mode and temporal step of our evolution network. We present the underlying theoretical scheme that we have devised in order to model controlled particle losses, we describe an experimental platform capable of implementing our theory in a time multiplexing encoding. In the end we show how localized particle losses change the output distributions without altering their asymptotic spreading properties. Finally we devise a quantum civilization problem, a two walker generalisation of single particle recurrence processes.","lang":"eng"}]},{"status":"public","type":"journal_article","article_number":"244007","article_type":"review","_id":"31057","user_id":"49178","department":[{"_id":"623"},{"_id":"548"},{"_id":"10"}],"citation":{"mla":"Barkhofen, Sonja, et al. “Semiclassical Formulae For Wigner Distributions.” <i>Journal of Physics A: Mathematical and Theoretical</i>, vol. 55, no. 24, 244007, IOP Publishing Ltd, 2022, doi:<a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">10.1088/1751-8121/ac6d2b</a>.","short":"S. Barkhofen, P. Schütte, T. Weich, Journal of Physics A: Mathematical and Theoretical 55 (2022).","bibtex":"@article{Barkhofen_Schütte_Weich_2022, title={Semiclassical formulae For Wigner distributions}, volume={55}, DOI={<a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">10.1088/1751-8121/ac6d2b</a>}, number={24244007}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing Ltd}, author={Barkhofen, Sonja and Schütte, Philipp and Weich, Tobias}, year={2022} }","apa":"Barkhofen, S., Schütte, P., &#38; Weich, T. (2022). Semiclassical formulae For Wigner distributions. <i>Journal of Physics A: Mathematical and Theoretical</i>, <i>55</i>(24), Article 244007. <a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">https://doi.org/10.1088/1751-8121/ac6d2b</a>","chicago":"Barkhofen, Sonja, Philipp Schütte, and Tobias Weich. “Semiclassical Formulae For Wigner Distributions.” <i>Journal of Physics A: Mathematical and Theoretical</i> 55, no. 24 (2022). <a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">https://doi.org/10.1088/1751-8121/ac6d2b</a>.","ieee":"S. Barkhofen, P. Schütte, and T. Weich, “Semiclassical formulae For Wigner distributions,” <i>Journal of Physics A: Mathematical and Theoretical</i>, vol. 55, no. 24, Art. no. 244007, 2022, doi: <a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">10.1088/1751-8121/ac6d2b</a>.","ama":"Barkhofen S, Schütte P, Weich T. Semiclassical formulae For Wigner distributions. <i>Journal of Physics A: Mathematical and Theoretical</i>. 2022;55(24). doi:<a href=\"https://doi.org/10.1088/1751-8121/ac6d2b\">10.1088/1751-8121/ac6d2b</a>"},"intvolume":"        55","doi":"10.1088/1751-8121/ac6d2b","date_updated":"2024-02-06T20:40:45Z","author":[{"last_name":"Barkhofen","id":"48188","full_name":"Barkhofen, Sonja","first_name":"Sonja"},{"first_name":"Philipp","id":"50168","full_name":"Schütte, Philipp","last_name":"Schütte"},{"first_name":"Tobias","orcid":"0000-0002-9648-6919","last_name":"Weich","id":"49178","full_name":"Weich, Tobias"}],"volume":55,"abstract":[{"lang":"eng","text":"In this paper we give an overview over some aspects of the modern mathematical theory of Ruelle resonances for chaotic, i.e. uniformly hyperbolic, dynamical systems and their implications in physics. First we recall recent developments in the mathematical theory of resonances, in particular how invariant Ruelle distributions arise as residues of weighted zeta functions. Then we derive a correspondence between weighted and semiclassical zeta functions in the setting of negatively curved surfaces. Combining this with results of Hilgert, Guillarmou and Weich yields a high frequency interpretation of invariant Ruelle distributions as quantum mechanical matrix coefficients in constant negative curvature. We finish by presenting numerical calculations of phase space distributions in the more physical setting of 3-disk scattering systems."}],"publication":"Journal of Physics A: Mathematical and Theoretical","language":[{"iso":"eng"}],"external_id":{"arxiv":["2201.04892"]},"year":"2022","issue":"24","title":"Semiclassical formulae For Wigner distributions","publisher":"IOP Publishing Ltd","date_created":"2022-05-04T12:23:11Z"},{"article_number":"150501","keyword":["General Physics and Astronomy"],"language":[{"iso":"eng"}],"_id":"39025","user_id":"26263","department":[{"_id":"623"}],"status":"public","type":"journal_article","publication":"Physical Review Letters","title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","doi":"10.1103/physrevlett.129.150501","publisher":"American Physical Society (APS)","date_updated":"2023-01-31T07:51:51Z","date_created":"2023-01-24T08:05:44Z","author":[{"first_name":"Evan","full_name":"Meyer-Scott, Evan","last_name":"Meyer-Scott"},{"last_name":"Prasannan","full_name":"Prasannan, Nidhin","id":"71403","first_name":"Nidhin"},{"first_name":"Ish","last_name":"Dhand","full_name":"Dhand, Ish"},{"first_name":"Christof","full_name":"Eigner, Christof","id":"13244","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083"},{"first_name":"Viktor","last_name":"Quiring","full_name":"Quiring, Viktor"},{"first_name":"Sonja","full_name":"Barkhofen, Sonja","id":"48188","last_name":"Barkhofen"},{"first_name":"Benjamin","full_name":"Brecht, Benjamin","id":"27150","orcid":"0000-0003-4140-0556 ","last_name":"Brecht"},{"first_name":"Martin B.","last_name":"Plenio","full_name":"Plenio, Martin B."},{"last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263","first_name":"Christine"}],"volume":129,"year":"2022","citation":{"chicago":"Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i> 129, no. 15 (2022). <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">https://doi.org/10.1103/physrevlett.129.150501</a>.","ieee":"E. Meyer-Scott <i>et al.</i>, “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing,” <i>Physical Review Letters</i>, vol. 129, no. 15, Art. no. 150501, 2022, doi: <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>.","ama":"Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>. 2022;129(15). doi:<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>","mla":"Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i>, vol. 129, no. 15, 150501, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>.","short":"E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen, B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022).","bibtex":"@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022, title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing}, volume={129}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>}, number={15150501}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }","apa":"Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen, S., Brecht, B., Plenio, M. B., &#38; Silberhorn, C. (2022). Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>, <i>129</i>(15), Article 150501. <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">https://doi.org/10.1103/physrevlett.129.150501</a>"},"intvolume":"       129","publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"issue":"15"},{"issue":"15","publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"citation":{"ama":"Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>. 2022;129(15). doi:<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>","chicago":"Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i> 129, no. 15 (2022). <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">https://doi.org/10.1103/physrevlett.129.150501</a>.","ieee":"E. Meyer-Scott <i>et al.</i>, “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing,” <i>Physical Review Letters</i>, vol. 129, no. 15, Art. no. 150501, 2022, doi: <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>.","bibtex":"@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022, title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing}, volume={129}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>}, number={15150501}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }","mla":"Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i>, vol. 129, no. 15, 150501, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physrevlett.129.150501\">10.1103/physrevlett.129.150501</a>.","short":"E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen, B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022).","apa":"Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen, S., Brecht, B., Plenio, M. B., &#38; Silberhorn, C. (2022). Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>, <i>129</i>(15), Article 150501. <a href=\"https://doi.org/10.1103/physrevlett.129.150501\">https://doi.org/10.1103/physrevlett.129.150501</a>"},"intvolume":"       129","year":"2022","date_created":"2023-01-26T10:21:24Z","author":[{"first_name":"Evan","last_name":"Meyer-Scott","full_name":"Meyer-Scott, Evan"},{"full_name":"Prasannan, Nidhin","id":"71403","last_name":"Prasannan","first_name":"Nidhin"},{"first_name":"Ish","last_name":"Dhand","full_name":"Dhand, Ish"},{"first_name":"Christof","full_name":"Eigner, Christof","id":"13244","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083"},{"full_name":"Quiring, Viktor","last_name":"Quiring","first_name":"Viktor"},{"first_name":"Sonja","id":"48188","full_name":"Barkhofen, Sonja","last_name":"Barkhofen"},{"full_name":"Brecht, Benjamin","id":"27150","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","first_name":"Benjamin"},{"full_name":"Plenio, Martin B.","last_name":"Plenio","first_name":"Martin B."},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"}],"volume":129,"publisher":"American Physical Society (APS)","date_updated":"2023-02-02T08:53:55Z","doi":"10.1103/physrevlett.129.150501","title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","type":"journal_article","publication":"Physical Review Letters","status":"public","user_id":"48188","department":[{"_id":"288"},{"_id":"15"},{"_id":"623"},{"_id":"230"}],"_id":"40273","language":[{"iso":"eng"}],"article_number":"150501","keyword":["General Physics and Astronomy"]},{"year":"2022","citation":{"ieee":"C. S. Hamilton, R. Christ, S. Barkhofen, S. M. Barnett, I. Jex, and C. Silberhorn, “Quantum-state creation in nonlinear-waveguide arrays,” <i>Physical Review A</i>, vol. 105, no. 4, Art. no. 042622, 2022, doi: <a href=\"https://doi.org/10.1103/physreva.105.042622\">10.1103/physreva.105.042622</a>.","chicago":"Hamilton, Craig S., Regina Christ, Sonja Barkhofen, Stephen M. Barnett, Igor Jex, and Christine Silberhorn. “Quantum-State Creation in Nonlinear-Waveguide Arrays.” <i>Physical Review A</i> 105, no. 4 (2022). <a href=\"https://doi.org/10.1103/physreva.105.042622\">https://doi.org/10.1103/physreva.105.042622</a>.","ama":"Hamilton CS, Christ R, Barkhofen S, Barnett SM, Jex I, Silberhorn C. Quantum-state creation in nonlinear-waveguide arrays. <i>Physical Review A</i>. 2022;105(4). doi:<a href=\"https://doi.org/10.1103/physreva.105.042622\">10.1103/physreva.105.042622</a>","bibtex":"@article{Hamilton_Christ_Barkhofen_Barnett_Jex_Silberhorn_2022, title={Quantum-state creation in nonlinear-waveguide arrays}, volume={105}, DOI={<a href=\"https://doi.org/10.1103/physreva.105.042622\">10.1103/physreva.105.042622</a>}, number={4042622}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Hamilton, Craig S. and Christ, Regina and Barkhofen, Sonja and Barnett, Stephen M. and Jex, Igor and Silberhorn, Christine}, year={2022} }","mla":"Hamilton, Craig S., et al. “Quantum-State Creation in Nonlinear-Waveguide Arrays.” <i>Physical Review A</i>, vol. 105, no. 4, 042622, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physreva.105.042622\">10.1103/physreva.105.042622</a>.","short":"C.S. Hamilton, R. Christ, S. Barkhofen, S.M. Barnett, I. Jex, C. Silberhorn, Physical Review A 105 (2022).","apa":"Hamilton, C. S., Christ, R., Barkhofen, S., Barnett, S. M., Jex, I., &#38; Silberhorn, C. (2022). Quantum-state creation in nonlinear-waveguide arrays. <i>Physical Review A</i>, <i>105</i>(4), Article 042622. <a href=\"https://doi.org/10.1103/physreva.105.042622\">https://doi.org/10.1103/physreva.105.042622</a>"},"intvolume":"       105","publication_status":"published","publication_identifier":{"issn":["2469-9926","2469-9934"]},"issue":"4","title":"Quantum-state creation in nonlinear-waveguide arrays","doi":"10.1103/physreva.105.042622","date_updated":"2023-02-02T08:34:15Z","publisher":"American Physical Society (APS)","author":[{"full_name":"Hamilton, Craig S.","last_name":"Hamilton","first_name":"Craig S."},{"full_name":"Christ, Regina","last_name":"Christ","first_name":"Regina"},{"id":"48188","full_name":"Barkhofen, Sonja","last_name":"Barkhofen","first_name":"Sonja"},{"full_name":"Barnett, Stephen M.","last_name":"Barnett","first_name":"Stephen M."},{"full_name":"Jex, Igor","last_name":"Jex","first_name":"Igor"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"}],"date_created":"2022-09-21T06:40:02Z","volume":105,"status":"public","type":"journal_article","publication":"Physical Review A","article_number":"042622","language":[{"iso":"eng"}],"_id":"33450","user_id":"48188","department":[{"_id":"623"}]},{"abstract":[{"text":"Quantum walks function as essential means to implement quantum simulators, allowing one to study complex and often directly inaccessible quantum processes in controllable systems. In this contribution, the notion of a driven Gaussian quantum walk is introduced. In contrast to typically considered quantum walks in optical settings, we describe the operation of the walk in terms of a nonlinear map rather than a unitary operation, e.g., by replacing a beam-splitter-type coin with a two-mode squeezer, being a process that is controlled and driven by a pump field. This opens previously unattainable possibilities for quantum walks that include nonlinear elements as core components of their operation, vastly extending their range of applications. A full framework for driven Gaussian quantum walks is developed, including methods to dynamically characterize nonlinear, quantum, and quantum-nonlinear effects. Moreover, driven Gaussian quantum walks are compared with their classically interfering and linear counterparts, which are based on classical coherence of light rather than quantum superpositions. In particular, the generation and boost of highly multimode entanglement, squeezing, and other quantum effects are studied over the duration of the nonlinear walk. Importantly, we prove the quantumness of the evolution itself, regardless of the input state. A scheme for an experimental realization is proposed. Furthermore, nonlinear properties of driven Gaussian quantum walks are explored, such as amplification that leads to an ever increasing number of correlated quantum particles, constituting a source of new walkers during the walk. Therefore, a concept for quantum walks is proposed that leads to—and even produces—directly accessible quantum phenomena, and that renders the quantum simulation of nonlinear processes possible.","lang":"eng"}],"publication":"Physical Review A","language":[{"iso":"eng"}],"year":"2022","issue":"4","title":"Driven Gaussian quantum walks","date_created":"2022-04-20T06:38:07Z","publisher":"American Physical Society (APS)","status":"public","type":"journal_article","article_type":"original","article_number":"042210","user_id":"68236","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"288"},{"_id":"230"},{"_id":"429"},{"_id":"35"}],"project":[{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142: TRR 142","_id":"53"}],"_id":"30921","citation":{"apa":"Held, P., Engelkemeier, M., De, S., Barkhofen, S., Sperling, J., &#38; Silberhorn, C. (2022). Driven Gaussian quantum walks. <i>Physical Review A</i>, <i>105</i>(4), Article 042210. <a href=\"https://doi.org/10.1103/physreva.105.042210\">https://doi.org/10.1103/physreva.105.042210</a>","short":"P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, C. Silberhorn, Physical Review A 105 (2022).","bibtex":"@article{Held_Engelkemeier_De_Barkhofen_Sperling_Silberhorn_2022, title={Driven Gaussian quantum walks}, volume={105}, DOI={<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>}, number={4042210}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Held, Philip and Engelkemeier, Melanie and De, Syamsundar and Barkhofen, Sonja and Sperling, Jan and Silberhorn, Christine}, year={2022} }","mla":"Held, Philip, et al. “Driven Gaussian Quantum Walks.” <i>Physical Review A</i>, vol. 105, no. 4, 042210, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>.","chicago":"Held, Philip, Melanie Engelkemeier, Syamsundar De, Sonja Barkhofen, Jan Sperling, and Christine Silberhorn. “Driven Gaussian Quantum Walks.” <i>Physical Review A</i> 105, no. 4 (2022). <a href=\"https://doi.org/10.1103/physreva.105.042210\">https://doi.org/10.1103/physreva.105.042210</a>.","ieee":"P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, and C. Silberhorn, “Driven Gaussian quantum walks,” <i>Physical Review A</i>, vol. 105, no. 4, Art. no. 042210, 2022, doi: <a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>.","ama":"Held P, Engelkemeier M, De S, Barkhofen S, Sperling J, Silberhorn C. Driven Gaussian quantum walks. <i>Physical Review A</i>. 2022;105(4). doi:<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>"},"intvolume":"       105","publication_status":"published","publication_identifier":{"issn":["2469-9926","2469-9934"]},"main_file_link":[{"url":"https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.042210"}],"doi":"10.1103/physreva.105.042210","author":[{"full_name":"Held, Philip","id":"68236","last_name":"Held","first_name":"Philip"},{"full_name":"Engelkemeier, Melanie","last_name":"Engelkemeier","first_name":"Melanie"},{"first_name":"Syamsundar","full_name":"De, Syamsundar","last_name":"De"},{"last_name":"Barkhofen","id":"48188","full_name":"Barkhofen, Sonja","first_name":"Sonja"},{"orcid":"0000-0002-5844-3205","last_name":"Sperling","id":"75127","full_name":"Sperling, Jan","first_name":"Jan"},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"}],"volume":105,"date_updated":"2026-01-09T09:50:22Z"},{"language":[{"iso":"eng"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"288"},{"_id":"230"},{"_id":"623"},{"_id":"35"}],"user_id":"16199","_id":"26284","status":"public","publication":"Physical Review Research","type":"journal_article","doi":"10.1103/physrevresearch.3.023183","title":"Probing the topological Anderson transition with quantum walks","author":[{"last_name":"Bagrets","full_name":"Bagrets, Dmitry","first_name":"Dmitry"},{"full_name":"Kim, Kun Woo","last_name":"Kim","first_name":"Kun Woo"},{"last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188","first_name":"Sonja"},{"full_name":"De, Syamsundar","last_name":"De","first_name":"Syamsundar"},{"full_name":"Sperling, Jan","id":"75127","last_name":"Sperling","orcid":"0000-0002-5844-3205","first_name":"Jan"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"},{"first_name":"Alexander","full_name":"Altland, Alexander","last_name":"Altland"},{"first_name":"Tobias","last_name":"Micklitz","full_name":"Micklitz, Tobias"}],"date_created":"2021-10-15T16:03:53Z","date_updated":"2023-04-20T15:07:12Z","citation":{"apa":"Bagrets, D., Kim, K. W., Barkhofen, S., De, S., Sperling, J., Silberhorn, C., Altland, A., &#38; Micklitz, T. (2021). Probing the topological Anderson transition with quantum walks. <i>Physical Review Research</i>. <a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">https://doi.org/10.1103/physrevresearch.3.023183</a>","short":"D. Bagrets, K.W. Kim, S. Barkhofen, S. De, J. Sperling, C. Silberhorn, A. Altland, T. Micklitz, Physical Review Research (2021).","mla":"Bagrets, Dmitry, et al. “Probing the Topological Anderson Transition with Quantum Walks.” <i>Physical Review Research</i>, 2021, doi:<a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">10.1103/physrevresearch.3.023183</a>.","bibtex":"@article{Bagrets_Kim_Barkhofen_De_Sperling_Silberhorn_Altland_Micklitz_2021, title={Probing the topological Anderson transition with quantum walks}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">10.1103/physrevresearch.3.023183</a>}, journal={Physical Review Research}, author={Bagrets, Dmitry and Kim, Kun Woo and Barkhofen, Sonja and De, Syamsundar and Sperling, Jan and Silberhorn, Christine and Altland, Alexander and Micklitz, Tobias}, year={2021} }","chicago":"Bagrets, Dmitry, Kun Woo Kim, Sonja Barkhofen, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander Altland, and Tobias Micklitz. “Probing the Topological Anderson Transition with Quantum Walks.” <i>Physical Review Research</i>, 2021. <a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">https://doi.org/10.1103/physrevresearch.3.023183</a>.","ieee":"D. Bagrets <i>et al.</i>, “Probing the topological Anderson transition with quantum walks,” <i>Physical Review Research</i>, 2021, doi: <a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">10.1103/physrevresearch.3.023183</a>.","ama":"Bagrets D, Kim KW, Barkhofen S, et al. Probing the topological Anderson transition with quantum walks. <i>Physical Review Research</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1103/physrevresearch.3.023183\">10.1103/physrevresearch.3.023183</a>"},"year":"2021","publication_identifier":{"issn":["2643-1564"]},"publication_status":"published"},{"citation":{"ieee":"A. 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Nitsche <i>et al.</i>, “Local Versus Global Two-Photon Interference in Quantum Networks,” <i>Physical Review Letters</i>, 2020, doi: <a href=\"https://doi.org/10.1103/physrevlett.125.213604\">10.1103/physrevlett.125.213604</a>.","chicago":"Nitsche, Thomas, Syamsundar De, Sonja Barkhofen, Evan Meyer-Scott, Johannes Tiedau, Jan Sperling, Aurél Gábris, Igor Jex, and Christine Silberhorn. “Local Versus Global Two-Photon Interference in Quantum Networks.” <i>Physical Review Letters</i>, 2020. <a href=\"https://doi.org/10.1103/physrevlett.125.213604\">https://doi.org/10.1103/physrevlett.125.213604</a>."},"year":"2020","publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"language":[{"iso":"eng"}],"user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"288"},{"_id":"230"},{"_id":"623"},{"_id":"35"}],"_id":"26289","status":"public","type":"journal_article","publication":"Physical Review Letters"},{"language":[{"iso":"eng"}],"user_id":"48188","_id":"26500","status":"public","publication":"Physical Review Research","type":"journal_article","doi":"10.1103/physrevresearch.1.033036","title":"Photonic quantum walks with four-dimensional coins","date_created":"2021-10-19T07:02:15Z","author":[{"last_name":"Lorz","full_name":"Lorz, Lennart","first_name":"Lennart"},{"first_name":"Evan","last_name":"Meyer-Scott","full_name":"Meyer-Scott, Evan"},{"first_name":"Thomas","full_name":"Nitsche, Thomas","last_name":"Nitsche"},{"first_name":"Václav","last_name":"Potoček","full_name":"Potoček, Václav"},{"last_name":"Gábris","full_name":"Gábris, Aurél","first_name":"Aurél"},{"first_name":"Sonja","last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188"},{"full_name":"Jex, Igor","last_name":"Jex","first_name":"Igor"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"}],"date_updated":"2022-01-06T06:57:21Z","citation":{"apa":"Lorz, L., Meyer-Scott, E., Nitsche, T., Potoček, V., Gábris, A., Barkhofen, S., Jex, I., &#38; Silberhorn, C. 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Nitsche <i>et al.</i>, “Eigenvalue measurement of topologically protected edge states in split-step quantum walks,” <i>New Journal of Physics</i>, Art. no. 043031, 2019, doi: <a href=\"https://doi.org/10.1088/1367-2630/ab12fa\">10.1088/1367-2630/ab12fa</a>.","chicago":"Nitsche, Thomas, Tobias Geib, Christoph Stahl, Lennart Lorz, Christopher Cedzich, Sonja Barkhofen, Reinhard F Werner, and Christine Silberhorn. “Eigenvalue Measurement of Topologically Protected Edge States in Split-Step Quantum Walks.” <i>New Journal of Physics</i>, 2019. <a href=\"https://doi.org/10.1088/1367-2630/ab12fa\">https://doi.org/10.1088/1367-2630/ab12fa</a>.","apa":"Nitsche, T., Geib, T., Stahl, C., Lorz, L., Cedzich, C., Barkhofen, S., Werner, R. F., &#38; Silberhorn, C. (2019). Eigenvalue measurement of topologically protected edge states in split-step quantum walks. <i>New Journal of Physics</i>, Article 043031. <a href=\"https://doi.org/10.1088/1367-2630/ab12fa\">https://doi.org/10.1088/1367-2630/ab12fa</a>","bibtex":"@article{Nitsche_Geib_Stahl_Lorz_Cedzich_Barkhofen_Werner_Silberhorn_2019, title={Eigenvalue measurement of topologically protected edge states in split-step quantum walks}, DOI={<a href=\"https://doi.org/10.1088/1367-2630/ab12fa\">10.1088/1367-2630/ab12fa</a>}, number={043031}, journal={New Journal of Physics}, author={Nitsche, Thomas and Geib, Tobias and Stahl, Christoph and Lorz, Lennart and Cedzich, Christopher and Barkhofen, Sonja and Werner, Reinhard F and Silberhorn, Christine}, year={2019} }","short":"T. Nitsche, T. Geib, C. Stahl, L. Lorz, C. Cedzich, S. Barkhofen, R.F. Werner, C. Silberhorn, New Journal of Physics (2019).","mla":"Nitsche, Thomas, et al. “Eigenvalue Measurement of Topologically Protected Edge States in Split-Step Quantum Walks.” <i>New Journal of Physics</i>, 043031, 2019, doi:<a href=\"https://doi.org/10.1088/1367-2630/ab12fa\">10.1088/1367-2630/ab12fa</a>."},"date_updated":"2022-01-06T06:57:21Z","date_created":"2021-10-19T07:11:44Z","author":[{"first_name":"Thomas","last_name":"Nitsche","full_name":"Nitsche, Thomas"},{"full_name":"Geib, Tobias","last_name":"Geib","first_name":"Tobias"},{"first_name":"Christoph","full_name":"Stahl, Christoph","last_name":"Stahl"},{"first_name":"Lennart","last_name":"Lorz","full_name":"Lorz, Lennart"},{"full_name":"Cedzich, Christopher","last_name":"Cedzich","first_name":"Christopher"},{"first_name":"Sonja","last_name":"Barkhofen","id":"48188","full_name":"Barkhofen, Sonja"},{"first_name":"Reinhard F","full_name":"Werner, Reinhard F","last_name":"Werner"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"}],"title":"Eigenvalue measurement of topologically protected edge states in split-step quantum walks","doi":"10.1088/1367-2630/ab12fa"},{"status":"public","publication":"Optics Express","type":"journal_article","article_number":"1","language":[{"iso":"eng"}],"_id":"26509","user_id":"48188","year":"2019","citation":{"chicago":"Tiedau, Johannes, Evan Meyer-Scott, Thomas Nitsche, Sonja Barkhofen, Tim J. Bartley, and Christine Silberhorn. “A High Dynamic Range Optical Detector for Measuring Single Photons and Bright Light.” <i>Optics Express</i>, 2019. <a href=\"https://doi.org/10.1364/oe.27.000001\">https://doi.org/10.1364/oe.27.000001</a>.","ieee":"J. Tiedau, E. Meyer-Scott, T. Nitsche, S. Barkhofen, T. J. Bartley, and C. Silberhorn, “A high dynamic range optical detector for measuring single photons and bright light,” <i>Optics Express</i>, Art. no. 1, 2019, doi: <a href=\"https://doi.org/10.1364/oe.27.000001\">10.1364/oe.27.000001</a>.","ama":"Tiedau J, Meyer-Scott E, Nitsche T, Barkhofen S, Bartley TJ, Silberhorn C. A high dynamic range optical detector for measuring single photons and bright light. <i>Optics Express</i>. Published online 2019. doi:<a href=\"https://doi.org/10.1364/oe.27.000001\">10.1364/oe.27.000001</a>","apa":"Tiedau, J., Meyer-Scott, E., Nitsche, T., Barkhofen, S., Bartley, T. J., &#38; Silberhorn, C. (2019). A high dynamic range optical detector for measuring single photons and bright light. <i>Optics Express</i>, Article 1. <a href=\"https://doi.org/10.1364/oe.27.000001\">https://doi.org/10.1364/oe.27.000001</a>","mla":"Tiedau, Johannes, et al. “A High Dynamic Range Optical Detector for Measuring Single Photons and Bright Light.” <i>Optics Express</i>, 1, 2019, doi:<a href=\"https://doi.org/10.1364/oe.27.000001\">10.1364/oe.27.000001</a>.","bibtex":"@article{Tiedau_Meyer-Scott_Nitsche_Barkhofen_Bartley_Silberhorn_2019, title={A high dynamic range optical detector for measuring single photons and bright light}, DOI={<a href=\"https://doi.org/10.1364/oe.27.000001\">10.1364/oe.27.000001</a>}, number={1}, journal={Optics Express}, author={Tiedau, Johannes and Meyer-Scott, Evan and Nitsche, Thomas and Barkhofen, Sonja and Bartley, Tim J. and Silberhorn, Christine}, year={2019} }","short":"J. Tiedau, E. Meyer-Scott, T. Nitsche, S. Barkhofen, T.J. Bartley, C. Silberhorn, Optics Express (2019)."},"publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","title":"A high dynamic range optical detector for measuring single photons and bright light","doi":"10.1364/oe.27.000001","date_updated":"2022-01-06T06:57:21Z","date_created":"2021-10-19T07:12:37Z","author":[{"first_name":"Johannes","last_name":"Tiedau","full_name":"Tiedau, Johannes"},{"last_name":"Meyer-Scott","full_name":"Meyer-Scott, Evan","first_name":"Evan"},{"full_name":"Nitsche, Thomas","last_name":"Nitsche","first_name":"Thomas"},{"first_name":"Sonja","full_name":"Barkhofen, Sonja","id":"48188","last_name":"Barkhofen"},{"last_name":"Bartley","full_name":"Bartley, Tim J.","first_name":"Tim J."},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"}]}]