[{"_id":"50272","page":"1-24","volume":325,"user_id":"71541","status":"public","external_id":{"arxiv":["2401.02368"]},"citation":{"short":"D. Rudolph, S. Gharibian, D. Nagaj, in: 16th Innovations in Theoretical Computer Science (ITCS), 2025, pp. 1–24.","chicago":"Rudolph, Dorian, Sevag Gharibian, and Daniel Nagaj. “Quantum 2-SAT on Low Dimensional Systems Is $\\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” In <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, 325:1–24, 2025. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">https://doi.org/10.4230/LIPIcs.ITCS.2025.85</a>.","apa":"Rudolph, D., Gharibian, S., &#38; Nagaj, D. (2025). Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, <i>325</i>(85), 1–24. <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">https://doi.org/10.4230/LIPIcs.ITCS.2025.85</a>","ieee":"D. Rudolph, S. Gharibian, and D. Nagaj, “Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation,” in <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, 2025, vol. 325, no. 85, pp. 1–24, doi: <a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>.","ama":"Rudolph D, Gharibian S, Nagaj D. Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. In: <i>16th Innovations in Theoretical Computer Science (ITCS)</i>. Vol 325. ; 2025:1-24. doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>","bibtex":"@inproceedings{Rudolph_Gharibian_Nagaj_2025, title={Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation}, volume={325}, DOI={<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>}, number={85}, booktitle={16th Innovations in Theoretical Computer Science (ITCS)}, author={Rudolph, Dorian and Gharibian, Sevag and Nagaj, Daniel}, year={2025}, pages={1–24} }","mla":"Rudolph, Dorian, et al. “Quantum 2-SAT on Low Dimensional Systems Is $\\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” <i>16th Innovations in Theoretical Computer Science (ITCS)</i>, vol. 325, no. 85, 2025, pp. 1–24, doi:<a href=\"https://doi.org/10.4230/LIPIcs.ITCS.2025.85\">10.4230/LIPIcs.ITCS.2025.85</a>."},"language":[{"iso":"eng"}],"doi":"10.4230/LIPIcs.ITCS.2025.85","author":[{"id":"57863","last_name":"Rudolph","first_name":"Dorian","full_name":"Rudolph, Dorian"},{"full_name":"Gharibian, Sevag","orcid":"0000-0002-9992-3379","last_name":"Gharibian","first_name":"Sevag","id":"71541"},{"full_name":"Nagaj, Daniel","first_name":"Daniel","last_name":"Nagaj"}],"title":"Quantum 2-SAT on low dimensional systems is $\\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation","year":"2025","intvolume":"       325","date_updated":"2026-05-15T08:38:31Z","publication_status":"published","date_created":"2024-01-07T20:09:13Z","department":[{"_id":"7"},{"_id":"623"}],"type":"conference","publication":"16th Innovations in Theoretical Computer Science (ITCS)","issue":"85","abstract":[{"lang":"eng","text":"Despite the fundamental role the Quantum Satisfiability (QSAT) problem has\r\nplayed in quantum complexity theory, a central question remains open: At which\r\nlocal dimension does the complexity of QSAT transition from \"easy\" to \"hard\"?\r\nHere, we study QSAT with each constraint acting on a $k$-dimensional and\r\n$l$-dimensional qudit pair, denoted $(k,l)$-QSAT. Our first main result shows\r\nthat, surprisingly, QSAT on qubits can remain $\\mathsf{QMA}_1$-hard, in that\r\n$(2,5)$-QSAT is $\\mathsf{QMA}_1$-complete. In contrast, $2$-SAT on qubits is\r\nwell-known to be poly-time solvable [Bravyi, 2006]. Our second main result\r\nproves that $(3,d)$-QSAT on the 1D line with $d\\in O(1)$ is also\r\n$\\mathsf{QMA}_1$-hard. Finally, we initiate the study of 1D $(2,d)$-QSAT by\r\ngiving a frustration-free 1D Hamiltonian with a unique, entangled ground state.\r\n  Our first result uses a direct embedding, combining a novel clock\r\nconstruction with the 2D circuit-to-Hamiltonian construction of [Gosset, Nagaj,\r\n2013]. Of note is a new simplified and analytic proof for the latter (as\r\nopposed to a partially numeric proof in [GN13]). This exploits Unitary Labelled\r\nGraphs [Bausch, Cubitt, Ozols, 2017] together with a new \"Nullspace Connection\r\nLemma\", allowing us to break low energy analyses into small patches of\r\nprojectors, and to improve the soundness analysis of [GN13] from\r\n$\\Omega(1/T^6)$ to $\\Omega(1/T^2)$, for $T$ the number of gates. Our second\r\nresult goes via black-box reduction: Given an arbitrary 1D Hamiltonian $H$ on\r\n$d'$-dimensional qudits, we show how to embed it into an effective null-space\r\nof a 1D $(3,d)$-QSAT instance, for $d\\in O(1)$. Our approach may be viewed as a\r\nweaker notion of \"simulation\" (\\`a la [Bravyi, Hastings 2017], [Cubitt,\r\nMontanaro, Piddock 2018]). As far as we are aware, this gives the first\r\n\"black-box simulation\"-based $\\mathsf{QMA}_1$-hardness result, i.e. for\r\nfrustration-free Hamiltonians."}]},{"external_id":{"arxiv":["2407.03073"]},"date_created":"2024-07-04T09:02:42Z","type":"journal_article","department":[{"_id":"7"},{"_id":"623"}],"publication":"Physical Review Letters","citation":{"ieee":"H. Buhrman, S. Gharibian, Z. Landau, F. L. Gall, N. Schuch, and S. Tamaki, “Beating Grover search for low-energy estimation and state preparation,” <i>Physical Review Letters</i>, vol. 135, p. 030601, 2025, doi: <a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>.","apa":"Buhrman, H., Gharibian, S., Landau, Z., Gall, F. L., Schuch, N., &#38; Tamaki, S. (2025). Beating Grover search for low-energy estimation and state preparation. <i>Physical Review Letters</i>, <i>135</i>, 030601. <a href=\"https://doi.org/10.1103/29qw-bssx\">https://doi.org/10.1103/29qw-bssx</a>","chicago":"Buhrman, Harry, Sevag Gharibian, Zeph Landau, François Le Gall, Norbert Schuch, and Suguru Tamaki. “Beating Grover Search for Low-Energy Estimation and State Preparation.” <i>Physical Review Letters</i> 135 (2025): 030601. <a href=\"https://doi.org/10.1103/29qw-bssx\">https://doi.org/10.1103/29qw-bssx</a>.","short":"H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, Physical Review Letters 135 (2025) 030601.","mla":"Buhrman, Harry, et al. “Beating Grover Search for Low-Energy Estimation and State Preparation.” <i>Physical Review Letters</i>, vol. 135, 2025, p. 030601, doi:<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>.","bibtex":"@article{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki_2025, title={Beating Grover search for low-energy estimation and state preparation}, volume={135}, DOI={<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>}, journal={Physical Review Letters}, author={Buhrman, Harry and Gharibian, Sevag and Landau, Zeph and Gall, François Le and Schuch, Norbert and Tamaki, Suguru}, year={2025}, pages={030601} }","ama":"Buhrman H, Gharibian S, Landau Z, Gall FL, Schuch N, Tamaki S. Beating Grover search for low-energy estimation and state preparation. <i>Physical Review Letters</i>. 2025;135:030601. doi:<a href=\"https://doi.org/10.1103/29qw-bssx\">10.1103/29qw-bssx</a>"},"abstract":[{"text":"Estimating ground state energies of many-body Hamiltonians is a central task\r\nin many areas of quantum physics. In this work, we give quantum algorithms\r\nwhich, given any $k$-body Hamiltonian $H$, compute an estimate for the ground\r\nstate energy and prepare a quantum state achieving said energy, respectively.\r\nSpecifically, for any $\\varepsilon>0$, our algorithms return, with high\r\nprobability, an estimate of the ground state energy of $H$ within additive\r\nerror $\\varepsilon M$, or a quantum state with the corresponding energy. Here,\r\n$M$ is the total strength of all interaction terms, which in general is\r\nextensive in the system size. Our approach makes no assumptions about the\r\ngeometry or spatial locality of interaction terms of the input Hamiltonian and\r\nthus handles even long-range or all-to-all interactions, such as in quantum\r\nchemistry, where lattice-based techniques break down. In this fully general\r\nsetting, the runtime of our algorithms scales as $2^{cn/2}$ for $c<1$, yielding\r\nthe first quantum algorithms for low-energy estimation breaking the natural\r\nbound based on Grover search. The core of our approach is remarkably simple,\r\nand relies on showing that any $k$-body Hamiltonian has a low-energy subspace\r\nof exponential dimension.","lang":"eng"}],"page":"030601","_id":"55037","language":[{"iso":"eng"}],"doi":"10.1103/29qw-bssx","user_id":"71541","volume":135,"year":"2025","title":"Beating Grover search for low-energy estimation and state preparation","status":"public","author":[{"full_name":"Buhrman, Harry","first_name":"Harry","last_name":"Buhrman"},{"last_name":"Gharibian","orcid":"0000-0002-9992-3379","first_name":"Sevag","full_name":"Gharibian, Sevag","id":"71541"},{"first_name":"Zeph","last_name":"Landau","full_name":"Landau, Zeph"},{"first_name":"François Le","last_name":"Gall","full_name":"Gall, François Le"},{"full_name":"Schuch, Norbert","last_name":"Schuch","first_name":"Norbert"},{"full_name":"Tamaki, Suguru","first_name":"Suguru","last_name":"Tamaki"}],"date_updated":"2026-05-15T08:40:45Z","publication_status":"published","intvolume":"       135"},{"external_id":{"arxiv":["2510.08545"]},"date_created":"2025-10-10T13:44:52Z","type":"preprint","department":[{"_id":"7"},{"_id":"623"}],"publication":"arXiv:2510.08545","citation":{"bibtex":"@article{Chabaud_Gharibian_Mehraban_Motamedi_Naeij_Rudolph_Sambrani_2025, title={Energy, Bosons and Computational Complexity}, journal={arXiv:2510.08545}, author={Chabaud, Ulysse and Gharibian, Sevag and Mehraban, Saeed and Motamedi, Arsalan and Naeij, Hamid Reza and Rudolph, Dorian and Sambrani, Dhruva}, year={2025} }","ama":"Chabaud U, Gharibian S, Mehraban S, et al. Energy, Bosons and Computational Complexity. <i>arXiv:251008545</i>. Published online 2025.","mla":"Chabaud, Ulysse, et al. “Energy, Bosons and Computational Complexity.” <i>ArXiv:2510.08545</i>, 2025.","short":"U. Chabaud, S. Gharibian, S. Mehraban, A. Motamedi, H.R. Naeij, D. Rudolph, D. Sambrani, ArXiv:2510.08545 (2025).","chicago":"Chabaud, Ulysse, Sevag Gharibian, Saeed Mehraban, Arsalan Motamedi, Hamid Reza Naeij, Dorian Rudolph, and Dhruva Sambrani. “Energy, Bosons and Computational Complexity.” <i>ArXiv:2510.08545</i>, 2025.","ieee":"U. Chabaud <i>et al.</i>, “Energy, Bosons and Computational Complexity,” <i>arXiv:2510.08545</i>. 2025.","apa":"Chabaud, U., Gharibian, S., Mehraban, S., Motamedi, A., Naeij, H. R., Rudolph, D., &#38; Sambrani, D. (2025). Energy, Bosons and Computational Complexity. In <i>arXiv:2510.08545</i>."},"abstract":[{"lang":"eng","text":"We investigate the role of energy, i.e. average photon number, as a resource\r\nin the computational complexity of bosonic systems. We show three sets of\r\nresults: (1. Energy growth rates) There exist bosonic gate sets which increase\r\nenergy incredibly rapidly, obtaining e.g. infinite energy in finite/constant\r\ntime. We prove these high energies can make computing properties of bosonic\r\ncomputations, such as deciding whether a given computation will attain infinite\r\nenergy, extremely difficult, formally undecidable. (2. Lower bounds on\r\ncomputational power) More energy ``='' more computational power. For example,\r\ncertain gate sets allow poly-time bosonic computations to simulate PTOWER, the\r\nset of deterministic computations whose runtime scales as a tower of\r\nexponentials with polynomial height. Even just exponential energy and $O(1)$\r\nmodes suffice to simulate NP, which, importantly, is a setup similar to that of\r\nthe recent bosonic factoring algorithm of [Brenner, Caha, Coiteux-Roy and\r\nKoenig (2024)]. For simpler gate sets, we show an energy hierarchy theorem. (3.\r\nUpper bounds on computational power) Bosonic computations with polynomial\r\nenergy can be simulated in BQP, ``physical'' bosonic computations with\r\narbitrary finite energy are decidable, and the gate set consisting of Gaussian\r\ngates and the cubic phase gate can be simulated in PP, with exponential bound\r\non energy, improving upon the previous PSPACE upper bound. Finally, combining\r\nupper and lower bounds yields no-go theorems for a continuous-variable\r\nSolovay--Kitaev theorem for gate sets such as the Gaussian and cubic phase\r\ngates."}],"language":[{"iso":"eng"}],"_id":"61776","user_id":"71541","status":"public","year":"2025","title":"Energy, Bosons and Computational Complexity","author":[{"full_name":"Chabaud, Ulysse","last_name":"Chabaud","first_name":"Ulysse"},{"orcid":"0000-0002-9992-3379","last_name":"Gharibian","first_name":"Sevag","full_name":"Gharibian, Sevag","id":"71541"},{"first_name":"Saeed","last_name":"Mehraban","full_name":"Mehraban, Saeed"},{"full_name":"Motamedi, Arsalan","last_name":"Motamedi","first_name":"Arsalan"},{"full_name":"Naeij, Hamid Reza","first_name":"Hamid Reza","last_name":"Naeij"},{"full_name":"Rudolph, Dorian","last_name":"Rudolph","first_name":"Dorian","id":"57863"},{"full_name":"Sambrani, Dhruva","last_name":"Sambrani","first_name":"Dhruva"}],"date_updated":"2026-05-15T08:39:50Z"},{"publication":"arXiv:2506.17066","citation":{"short":"S.-L. Kremer, D. Rudolph, S. Gharibian, ArXiv:2506.17066 (2025).","chicago":"Kremer, Simon-Luca, Dorian Rudolph, and Sevag Gharibian. “Quantum K-SAT Related Hypergraph Problems.” <i>ArXiv:2506.17066</i>, 2025.","apa":"Kremer, S.-L., Rudolph, D., &#38; Gharibian, S. (2025). Quantum k-SAT Related Hypergraph Problems. In <i>arXiv:2506.17066</i>.","ieee":"S.-L. Kremer, D. Rudolph, and S. Gharibian, “Quantum k-SAT Related Hypergraph Problems,” <i>arXiv:2506.17066</i>. 2025.","ama":"Kremer S-L, Rudolph D, Gharibian S. Quantum k-SAT Related Hypergraph Problems. <i>arXiv:250617066</i>. Published online 2025.","bibtex":"@article{Kremer_Rudolph_Gharibian_2025, title={Quantum k-SAT Related Hypergraph Problems}, journal={arXiv:2506.17066}, author={Kremer, Simon-Luca and Rudolph, Dorian and Gharibian, Sevag}, year={2025} }","mla":"Kremer, Simon-Luca, et al. “Quantum K-SAT Related Hypergraph Problems.” <i>ArXiv:2506.17066</i>, 2025."},"abstract":[{"lang":"eng","text":"The Quantum k-SAT problem is the quantum generalization of the k-SAT problem.\r\nIt is the problem whether a given local Hamiltonian is frustration-free.\r\nFrustration-free means that the ground state of the k-local Hamiltonian\r\nminimizes the energy of every local interaction term simultaneously. This is a\r\ncentral question in quantum physics and a canonical QMA_1-complete problem. The\r\nQuantum k-SAT problem is not as well studied as the classical k-SAT problem in\r\nterms of special tractable cases, approximation algorithms and parameterized\r\ncomplexity. In this paper, we will give a graph-theoretic study of the Quantum\r\nk-SAT problem with the structures core and radius. These hypergraph structures\r\nare important to solve the Quantum k-SAT problem. We can solve a Quantum k-SAT\r\ninstance in polynomial time if the derived hypergraph has a core of size n-m+a,\r\nwhere a is a constant, and the radius is at most logarithmic. If it exists, we\r\ncan find a core of size n-m+a with the best possible radius in polynomial time,\r\nwhereas finding a general minimum core with minimal radius is NP-hard."}],"external_id":{"arxiv":["2506.17066"]},"date_created":"2025-06-27T06:56:35Z","type":"preprint","department":[{"_id":"7"},{"_id":"623"}],"year":"2025","title":"Quantum k-SAT Related Hypergraph Problems","status":"public","author":[{"first_name":"Simon-Luca","last_name":"Kremer","full_name":"Kremer, Simon-Luca"},{"id":"57863","full_name":"Rudolph, Dorian","first_name":"Dorian","last_name":"Rudolph"},{"id":"71541","orcid":"0000-0002-9992-3379","last_name":"Gharibian","first_name":"Sevag","full_name":"Gharibian, Sevag"}],"date_updated":"2026-05-15T08:41:01Z","_id":"60432","language":[{"iso":"eng"}],"user_id":"71541"},{"page":"26–29","_id":"63440","language":[{"iso":"ger"}],"user_id":"11829","volume":2025,"year":"2025","status":"public","title":"Zerstörungsfreie Ultraschall-Prüfung von Organoblechen","author":[{"last_name":"Moritzer","first_name":"Elmar","full_name":"Moritzer, Elmar","id":"20531"},{"id":"70091","full_name":"Brandes, Philipp","orcid":"0009-0005-9707-0885","last_name":"Brandes","first_name":"Philipp"},{"full_name":"Westphal, Max Siegfried","last_name":"Westphal","first_name":"Max Siegfried"},{"id":"11829","last_name":"Claes","first_name":"Leander","orcid":"0000-0002-4393-268X","full_name":"Claes, Leander"},{"id":"74624","last_name":"Wippermann","first_name":"Mareen","full_name":"Wippermann, Mareen"},{"first_name":"Julia","last_name":"Düchting","full_name":"Düchting, Julia"},{"id":"213","full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning"}],"date_updated":"2026-05-18T13:20:58Z","intvolume":"      2025","date_created":"2026-01-05T08:42:55Z","type":"journal_article","keyword":["Faser-Kunststoff-Verbunde (FKV)","Faserverstärkte Kunststoffe (FVK)","Organobleche","Ultraschall"],"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"},{"_id":"49"}],"publication":"WAK Jahresmagazin","citation":{"ama":"Moritzer E, Brandes P, Westphal MS, et al. Zerstörungsfreie Ultraschall-Prüfung von Organoblechen. <i>WAK Jahresmagazin</i>. 2025;2025:26–29.","bibtex":"@article{Moritzer_Brandes_Westphal_Claes_Wippermann_Düchting_Henning_2025, title={Zerstörungsfreie Ultraschall-Prüfung von Organoblechen}, volume={2025}, journal={WAK Jahresmagazin}, author={Moritzer, Elmar and Brandes, Philipp and Westphal, Max Siegfried and Claes, Leander and Wippermann, Mareen and Düchting, Julia and Henning, Bernd}, year={2025}, pages={26–29} }","mla":"Moritzer, Elmar, et al. “Zerstörungsfreie Ultraschall-Prüfung von Organoblechen.” <i>WAK Jahresmagazin</i>, vol. 2025, 2025, pp. 26–29.","chicago":"Moritzer, Elmar, Philipp Brandes, Max Siegfried Westphal, Leander Claes, Mareen Wippermann, Julia Düchting, and Bernd Henning. “Zerstörungsfreie Ultraschall-Prüfung von Organoblechen.” <i>WAK Jahresmagazin</i> 2025 (2025): 26–29.","short":"E. Moritzer, P. Brandes, M.S. Westphal, L. Claes, M. Wippermann, J. Düchting, B. Henning, WAK Jahresmagazin 2025 (2025) 26–29.","apa":"Moritzer, E., Brandes, P., Westphal, M. S., Claes, L., Wippermann, M., Düchting, J., &#38; Henning, B. (2025). Zerstörungsfreie Ultraschall-Prüfung von Organoblechen. <i>WAK Jahresmagazin</i>, <i>2025</i>, 26–29.","ieee":"E. Moritzer <i>et al.</i>, “Zerstörungsfreie Ultraschall-Prüfung von Organoblechen,” <i>WAK Jahresmagazin</i>, vol. 2025, pp. 26–29, 2025."},"project":[{"name":"FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung","_id":"157","grant_number":"495847374"}]},{"status":"public","user_id":"42514","volume":15,"_id":"65669","publisher":"MDPI AG","citation":{"chicago":"Deutsch, Dennis, and Dirk Reuter. “Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy.” <i>Crystals</i> 15, no. 11 (2025). <a href=\"https://doi.org/10.3390/cryst15110913\">https://doi.org/10.3390/cryst15110913</a>.","short":"D. Deutsch, D. Reuter, Crystals 15 (2025).","ieee":"D. Deutsch and D. Reuter, “Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy,” <i>Crystals</i>, vol. 15, no. 11, Art. no. 913, 2025, doi: <a href=\"https://doi.org/10.3390/cryst15110913\">10.3390/cryst15110913</a>.","apa":"Deutsch, D., &#38; Reuter, D. (2025). Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy. <i>Crystals</i>, <i>15</i>(11), Article 913. <a href=\"https://doi.org/10.3390/cryst15110913\">https://doi.org/10.3390/cryst15110913</a>","bibtex":"@article{Deutsch_Reuter_2025, title={Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy}, volume={15}, DOI={<a href=\"https://doi.org/10.3390/cryst15110913\">10.3390/cryst15110913</a>}, number={11913}, journal={Crystals}, publisher={MDPI AG}, author={Deutsch, Dennis and Reuter, Dirk}, year={2025} }","ama":"Deutsch D, Reuter D. Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy. <i>Crystals</i>. 2025;15(11). doi:<a href=\"https://doi.org/10.3390/cryst15110913\">10.3390/cryst15110913</a>","mla":"Deutsch, Dennis, and Dirk Reuter. “Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy.” <i>Crystals</i>, vol. 15, no. 11, 913, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/cryst15110913\">10.3390/cryst15110913</a>."},"date_updated":"2026-05-21T06:36:29Z","publication_status":"published","intvolume":"        15","year":"2025","title":"Influence of the Etching Material Deposition Rate and Annealing Time on Nanohole Morphology Etched into InP/In0.52Al0.48As Layers via Local Droplet Epitaxy","publication_identifier":{"issn":["2073-4352"]},"author":[{"first_name":"Dennis","last_name":"Deutsch","full_name":"Deutsch, Dennis","id":"23489"},{"full_name":"Reuter, Dirk","first_name":"Dirk","last_name":"Reuter","id":"37763"}],"doi":"10.3390/cryst15110913","article_number":"913","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Local droplet etching and subsequent refilling enables the fabrication of highly symmetric quantum dots with low fine structure splitting, suitable for generating polarization entangled photons. While well established in GaAs/AlxGa1−xAs, this approach does not yield emission in the telecom bands required for low loss fiber-based quantum communication. To achieve emission at 1.55 μm, local droplet etching must be adapted to alternative material platforms such as InP. Here, we systematically investigate how the etching material deposition rate and etching time influence nanohole morphology in In0.52Al0.48As layers lattice-matched to InP. In the first experiment, InAl was deposited at fluxes of 0.2–4.0 Å s−1 at Tetch = 350 °C and 460 °C. Lower fluxes produced nanoholes with lower density and larger ring diameters, indicating fewer and larger initial droplets, consistent with scaling theory. The average nanohole diameter decreased monotonically with increasing flux, whereas the average depth showed no clear dependence on flux. In the second experiment, etching times of 30–600 s were tested for InAl, In, and Al droplets. Average nanohole diameters remained constant for Al across all etching times, but decreased for In and InAl with increasing etching time, suggesting sidewall redeposition during etching. For all droplet types, depths peaked at intermediate times and decreased for prolonged etching, consistent with material diffusion into the nanohole after droplet consumption.</jats:p>","lang":"eng"}],"issue":"11","publication":"Crystals","type":"journal_article","department":[{"_id":"15"},{"_id":"230"}],"date_created":"2026-05-21T06:35:35Z"},{"abstract":[{"text":"<jats:p>Abstract. Saving emissions and a circular economy are key aspects of sustainable production and compliance global climate change targets. Friction-induced solid-state recycling of aluminum scrap to production endless semi-finished products. Scrap is fed into a continuously rotating wheel. This requires less energy compared to heat-based recycling processes. Different sizes, shapes and surfaces of chips can be used as starting material in the process. The influence of this has been shown in past publications. A native oxide layer is a fixed component of aluminum surface. This layer is broken up during the forming process, allowing the aluminum to bond. In addition to the geometry, the surface finishes and the thickness of the oxide layer are therefore also important input variables in friction-induced solid-state recycling. The oxide layers on the chips were determined for the investigation. In addition, different layer thicknesses were produced to survey their influence. The resulting semi-finished products were evaluated on the basis of their tensile strength and microstructure. The main result of the investigations is the fact that semi-finished products made from chips with thicker oxide layers tend to be more brittle. In addition, thick oxide layers cause microstructural and surface defects.</jats:p>","lang":"eng"}],"publication":"Materials Research Proceedings","citation":{"chicago":"Gabsa, Steffen, Werner Homberg, Timothy Goller, Ansgar Bernhard Nordieker, and Guido Grundmeier. “Influence of Different Oxide Thicknesses on the Friction Induced and Continuous Solid-State Recycling of Aluminum Scrap.” In <i>Materials Research Proceedings</i>, Vol. 54. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-272\">https://doi.org/10.21741/9781644903599-272</a>.","short":"S. Gabsa, W. Homberg, T. Goller, A.B. Nordieker, G. Grundmeier, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","ieee":"S. Gabsa, W. Homberg, T. Goller, A. B. Nordieker, and G. Grundmeier, “Influence of different oxide thicknesses on the friction induced and continuous solid-state recycling of aluminum scrap,” in <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-272\">10.21741/9781644903599-272</a>.","apa":"Gabsa, S., Homberg, W., Goller, T., Nordieker, A. B., &#38; Grundmeier, G. (2025). Influence of different oxide thicknesses on the friction induced and continuous solid-state recycling of aluminum scrap. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-272\">https://doi.org/10.21741/9781644903599-272</a>","bibtex":"@inproceedings{Gabsa_Homberg_Goller_Nordieker_Grundmeier_2025, title={Influence of different oxide thicknesses on the friction induced and continuous solid-state recycling of aluminum scrap}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-272\">10.21741/9781644903599-272</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Gabsa, Steffen and Homberg, Werner and Goller, Timothy and Nordieker, Ansgar Bernhard and Grundmeier, Guido}, year={2025} }","ama":"Gabsa S, Homberg W, Goller T, Nordieker AB, Grundmeier G. Influence of different oxide thicknesses on the friction induced and continuous solid-state recycling of aluminum scrap. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-272\">10.21741/9781644903599-272</a>","mla":"Gabsa, Steffen, et al. “Influence of Different Oxide Thicknesses on the Friction Induced and Continuous Solid-State Recycling of Aluminum Scrap.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-272\">10.21741/9781644903599-272</a>."},"type":"conference","department":[{"_id":"9"},{"_id":"156"},{"_id":"321"}],"date_created":"2026-05-27T17:53:28Z","date_updated":"2026-05-27T17:57:23Z","publication_status":"published","intvolume":"        54","year":"2025","status":"public","title":"Influence of different oxide thicknesses on the friction induced and continuous solid-state recycling of aluminum scrap","publication_identifier":{"issn":["2474-395X"]},"author":[{"id":"106786","last_name":"Gabsa","first_name":"Steffen","full_name":"Gabsa, Steffen"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"},{"last_name":"Goller","first_name":"Timothy","full_name":"Goller, Timothy"},{"id":"88725","full_name":"Nordieker, Ansgar Bernhard","last_name":"Nordieker","first_name":"Ansgar Bernhard"},{"id":"194","full_name":"Grundmeier, Guido","first_name":"Guido","last_name":"Grundmeier"}],"doi":"10.21741/9781644903599-272","user_id":"106786","volume":54,"_id":"65706","language":[{"iso":"eng"}],"publisher":"Materials Research Forum LLC"},{"date_created":"2025-03-27T06:49:51Z","department":[{"_id":"26"},{"_id":"756"}],"type":"review","publication":"HannahArendt.Net","issue":"1","language":[{"iso":"ger"}],"main_file_link":[{"open_access":"1","url":"https://www.hannaharendt.net/index.php/han/article/view/607/1022"}],"doi":"10.57773/HANET.V14I1.607","author":[{"id":"94561","last_name":"Thomas","first_name":"Sven","full_name":"Thomas, Sven"}],"year":"2025","title":"Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis","intvolume":"        14","publication_status":"published","date_updated":"2026-08-11T12:43:41Z","oa":"1","citation":{"ama":"Thomas S. Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis. <i>HannahArendtNet</i>. 2025;14(1):240–242. doi:<a href=\"https://doi.org/10.57773/HANET.V14I1.607\">10.57773/HANET.V14I1.607</a>","bibtex":"@article{Thomas_2025, title={Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis}, volume={14}, DOI={<a href=\"https://doi.org/10.57773/HANET.V14I1.607\">10.57773/HANET.V14I1.607</a>}, number={1}, journal={HannahArendt.Net}, author={Thomas, Sven}, year={2025}, pages={240–242} }","mla":"Thomas, Sven. “Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis.” <i>HannahArendt.Net</i>, vol. 14, no. 1, 2025, pp. 240–242, doi:<a href=\"https://doi.org/10.57773/HANET.V14I1.607\">10.57773/HANET.V14I1.607</a>.","short":"S. Thomas, HannahArendt.Net 14 (2025) 240–242.","chicago":"Thomas, Sven. “Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis.” <i>HannahArendt.Net</i>, 2025. <a href=\"https://doi.org/10.57773/HANET.V14I1.607\">https://doi.org/10.57773/HANET.V14I1.607</a>.","apa":"Thomas, S. (2025). Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis. In <i>HannahArendt.Net</i> (Vol. 14, Issue 1, pp. 240–242). <a href=\"https://doi.org/10.57773/HANET.V14I1.607\">https://doi.org/10.57773/HANET.V14I1.607</a>","ieee":"S. Thomas, “Rezension: Thomas Meyers neue Arendt Biographie. Sinnbild der Verstrickung von Theorie und Praxis,” <i>HannahArendt.Net</i>, vol. 14, no. 1. pp. 240–242, 2025, doi: <a href=\"https://doi.org/10.57773/HANET.V14I1.607\">10.57773/HANET.V14I1.607</a>."},"_id":"59167","page":"240–242","volume":14,"user_id":"94561","status":"public"},{"issue":"1","publication":"HannahArendt.Net","citation":{"mla":"Thomas, Sven. “Rezension: Hanna Meretoja: Die Nacht der alten Feuer.” <i>HannahArendt.Net</i>, vol. 14, no. 1, 2025, pp. 237–239, doi:<a href=\"https://doi.org/10.57773/HANET.V14I1.606\">10.57773/HANET.V14I1.606</a>.","bibtex":"@article{Thomas_2025, title={Rezension: Hanna Meretoja: Die Nacht der alten Feuer}, volume={14}, DOI={<a href=\"https://doi.org/10.57773/HANET.V14I1.606\">10.57773/HANET.V14I1.606</a>}, number={1}, journal={HannahArendt.Net}, author={Thomas, Sven}, year={2025}, pages={237–239} }","ama":"Thomas S. Rezension: Hanna Meretoja: Die Nacht der alten Feuer. <i>HannahArendtNet</i>. 2025;14(1):237–239. doi:<a href=\"https://doi.org/10.57773/HANET.V14I1.606\">10.57773/HANET.V14I1.606</a>","ieee":"S. Thomas, “Rezension: Hanna Meretoja: Die Nacht der alten Feuer,” <i>HannahArendt.Net</i>, vol. 14, no. 1. pp. 237–239, 2025, doi: <a href=\"https://doi.org/10.57773/HANET.V14I1.606\">10.57773/HANET.V14I1.606</a>.","apa":"Thomas, S. (2025). Rezension: Hanna Meretoja: Die Nacht der alten Feuer. In <i>HannahArendt.Net</i> (Vol. 14, Issue 1, pp. 237–239). <a href=\"https://doi.org/10.57773/HANET.V14I1.606\">https://doi.org/10.57773/HANET.V14I1.606</a>","short":"S. Thomas, HannahArendt.Net 14 (2025) 237–239.","chicago":"Thomas, Sven. “Rezension: Hanna Meretoja: Die Nacht der alten Feuer.” <i>HannahArendt.Net</i>, 2025. <a href=\"https://doi.org/10.57773/HANET.V14I1.606\">https://doi.org/10.57773/HANET.V14I1.606</a>."},"date_created":"2025-03-27T06:48:27Z","type":"review","department":[{"_id":"26"},{"_id":"756"}],"oa":"1","year":"2025","title":"Rezension: Hanna Meretoja: Die Nacht der alten Feuer","status":"public","author":[{"full_name":"Thomas, Sven","last_name":"Thomas","first_name":"Sven","id":"94561"}],"date_updated":"2026-08-11T12:44:01Z","intvolume":"        14","main_file_link":[{"open_access":"1","url":"https://www.hannaharendt.net/index.php/han/article/view/606/961"}],"page":"237–239","language":[{"iso":"ger"}],"_id":"59166","user_id":"94561","doi":"10.57773/HANET.V14I1.606","volume":14},{"date_created":"2026-08-25T07:26:14Z","type":"journal_article","department":[{"_id":"459"},{"_id":"33"},{"_id":"640"}],"issue":"38/2025/E","publication":"TELEVIZION","citation":{"short":"B. Herzig, TELEVIZION (2025).","chicago":"Herzig, Bardo. “Artificial Intelligence - Prerequisites for Competent Use and Assessment.” <i>TELEVIZION</i>, no. 38/2025/E (2025).","apa":"Herzig, B. (2025). Artificial intelligence - prerequisites for competent use and assessment. <i>TELEVIZION</i>, <i>38/2025/E</i>.","ieee":"B. Herzig, “Artificial intelligence - prerequisites for competent use and assessment,” <i>TELEVIZION</i>, no. 38/2025/E, 2025.","ama":"Herzig B. Artificial intelligence - prerequisites for competent use and assessment. <i>TELEVIZION</i>. 2025;(38/2025/E).","bibtex":"@article{Herzig_2025, title={Artificial intelligence - prerequisites for competent use and assessment}, number={38/2025/E}, journal={TELEVIZION}, author={Herzig, Bardo}, year={2025} }","mla":"Herzig, Bardo. “Artificial Intelligence - Prerequisites for Competent Use and Assessment.” <i>TELEVIZION</i>, no. 38/2025/E, 2025."},"_id":"66844","language":[{"iso":"eng"}],"user_id":"66956","title":"Artificial intelligence - prerequisites for competent use and assessment","status":"public","year":"2025","publication_identifier":{"issn":["1862-7366"]},"author":[{"full_name":"Herzig, Bardo","first_name":"Bardo","last_name":"Herzig","id":"217"}],"date_updated":"2026-08-25T07:27:55Z"},{"has_accepted_license":"1","date_updated":"2026-08-26T16:49:31Z","author":[{"full_name":"Fechner, Sabine","last_name":"Fechner","first_name":"Sabine","orcid":"0000-0001-5645-5870","id":"54823"},{"full_name":"Schlegel-Matthies, Kirsten","first_name":"Kirsten","last_name":"Schlegel-Matthies","id":"459"},{"id":"100294","full_name":"Kiepe, Karina","first_name":"Karina","last_name":"Kiepe"}],"year":"2025","title":"Positionspapier: Bildung für nachhaltige Entwicklung (BNE) in der Lehrkräftebildung an der UPB","status":"public","user_id":"54823","ddc":["370"],"language":[{"iso":"eng"}],"_id":"61135","publisher":"AG Bildung für nachhaltige Entwicklung PLAZ","related_material":{"link":[{"relation":"confirmation","url":"https://plaz.uni-paderborn.de/ueber-uns/plaz-organisationsstruktur/arbeitsgruppen/ag-bildung-nachhaltige-entwicklung"}]},"citation":{"short":"S. Fechner, K. Schlegel-Matthies, K. Kiepe, Positionspapier: Bildung Für Nachhaltige Entwicklung (BNE) in Der Lehrkräftebildung an Der UPB, AG Bildung für nachhaltige Entwicklung PLAZ, Universität Paderborn, 2025.","chicago":"Fechner, Sabine, Kirsten Schlegel-Matthies, and Karina Kiepe. <i>Positionspapier: Bildung Für Nachhaltige Entwicklung (BNE) in Der Lehrkräftebildung an Der UPB</i>. Universität Paderborn: AG Bildung für nachhaltige Entwicklung PLAZ, 2025.","ieee":"S. Fechner, K. Schlegel-Matthies, and K. Kiepe, <i>Positionspapier: Bildung für nachhaltige Entwicklung (BNE) in der Lehrkräftebildung an der UPB</i>. Universität Paderborn: AG Bildung für nachhaltige Entwicklung PLAZ, 2025.","apa":"Fechner, S., Schlegel-Matthies, K., &#38; Kiepe, K. (2025). <i>Positionspapier: Bildung für nachhaltige Entwicklung (BNE) in der Lehrkräftebildung an der UPB</i>. AG Bildung für nachhaltige Entwicklung PLAZ.","bibtex":"@book{Fechner_Schlegel-Matthies_Kiepe_2025, place={Universität Paderborn}, title={Positionspapier: Bildung für nachhaltige Entwicklung (BNE) in der Lehrkräftebildung an der UPB}, publisher={AG Bildung für nachhaltige Entwicklung PLAZ}, author={Fechner, Sabine and Schlegel-Matthies, Kirsten and Kiepe, Karina}, year={2025} }","ama":"Fechner S, Schlegel-Matthies K, Kiepe K. <i>Positionspapier: Bildung Für Nachhaltige Entwicklung (BNE) in Der Lehrkräftebildung an Der UPB</i>. AG Bildung für nachhaltige Entwicklung PLAZ; 2025.","mla":"Fechner, Sabine, et al. <i>Positionspapier: Bildung Für Nachhaltige Entwicklung (BNE) in Der Lehrkräftebildung an Der UPB</i>. AG Bildung für nachhaltige Entwicklung PLAZ, 2025."},"file_date_updated":"2025-09-04T19:19:44Z","department":[{"_id":"33"},{"_id":"816"},{"_id":"386"}],"type":"working_paper","date_created":"2025-09-04T19:22:18Z","place":"Universität Paderborn","file":[{"relation":"main_file","date_updated":"2025-09-04T19:19:44Z","file_name":"Positionspapier_BNE_PLAZ_UPB_FINAL.pdf","access_level":"closed","file_size":146421,"file_id":"61136","content_type":"application/pdf","success":1,"creator":"fechner","date_created":"2025-09-04T19:19:44Z"}]},{"abstract":[{"lang":"ger","text":"Die Extrusion stellt das mengenmäßig dominante Verarbeitungsverfahren für thermoplastische Kunststoffe dar. Daher gibt es starke Bestrebungen in diesem Bereich hin zu einer höheren Wirtschaftlichkeit, welche beispielsweise durch höheren Massedurchsatz bei gleichbleibender Maschinengröße erreicht werden kann, oder aber auch im Hinblick auf eine Kreislaufwirtschaft die Bestrebung hin zu einer materialschonenden Verarbeitung. Beide Bestrebungen erfordern spezielle Schneckenkonzepte. Hierunter fallenWave- Schnecken, welche in beiden Bereichen ein vorteilhaftes Prozessverhalten aufzeigen sollen. Die Auslegung von Wave-Schnecken erfordert jedoch ein stärkeres Verständnis über das geometrieabhängige Prozessverhalten in der Extrusion. \r\nIm Rahmen der Dissertation werden zwei Themengebiete angegangen. Das erste Thema ist die Herleitung einer Methode zur Charakterisierung des Abbauverhaltens von Thermoplasten sowie die Nutzung der Charakterisierung als Vorhersagemodell. Das zweite Thema behandelt die Auslegung von Wave-Schnecken basierend auf numerischen Simulationen samt Validierung anhand von sieben Energy-Transfer-Schnecken im Vergleich zu drei konventionellen Schnecken. Hierbei werden unter anderem der Materialabbau, die thermische und die stoffliche Homogenität betrachtet, um ein umfassendes Bild über das Prozessverhalten der Schnecken zu schaffen. Die vorgestellten Untersuchungen dienen schlussendlich zu einer Bestätigung des vorteilhaften Prozessverhaltens von Wave-Schnecken."},{"text":"The extrusion process is the dominant processing method for thermoplastics in terms of quantity. For this reason, there are strong efforts in this area towards greater economic efficiency, which can be achieved, for example, through higher mass throughput with the same machine size, or, with regard to a circular economy, towards material-preserving processing. Both endeavours require special screw concepts. These include wave screws, which should demonstrate advantageous process behaviour in both areas. However, the design of wave screws requires a better understanding of the geometry-dependent process behaviour in extrusion. \r\nTwo topics are addressed in the dissertation. The first topic is the derivation of a method to characterise the degradation behaviour of thermoplastics and the use of the characterisation as a predictive model. The second topic deals with the design of wave screws based on numerical simulations including validation using seven energy transfer screws in comparison to three conventional screws. Among other things, the material degradation, the thermal and the material homogeneity are considered in order to create a comprehensive picture of the process behaviour of the screws. The presented investigations ultimately serve to confirm the advantageous process behaviour of wave screws.","lang":"eng"}],"date_created":"2024-01-16T09:48:27Z","department":[{"_id":"148"},{"_id":"321"},{"_id":"9"}],"type":"dissertation","publication_identifier":{"isbn":["978-3-8440-9334-6"]},"author":[{"id":"44224","first_name":"Christoph Wilhelm Theodor","last_name":"Schall","full_name":"Schall, Christoph Wilhelm Theodor"}],"title":"Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken","year":"2024","date_updated":"2024-01-16T09:49:07Z","publication_status":"published","language":[{"iso":"ger"}],"series_title":"Schriftenreihe Kunststofftechnik Paderborn","supervisor":[{"id":"20530","last_name":"Schöppner","first_name":"Volker","full_name":"Schöppner, Volker"}],"citation":{"bibtex":"@book{Schall_2024, place={Düren}, series={Schriftenreihe Kunststofftechnik Paderborn}, title={Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken}, volume={Band 2/2024}, publisher={Shaker Verlag}, author={Schall, Christoph Wilhelm Theodor}, year={2024}, collection={Schriftenreihe Kunststofftechnik Paderborn} }","ama":"Schall CWT. <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>. Vol Band 2/2024. Shaker Verlag; 2024.","mla":"Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>. Shaker Verlag, 2024.","chicago":"Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>. Vol. Band 2/2024. Schriftenreihe Kunststofftechnik Paderborn. Düren: Shaker Verlag, 2024.","short":"C.W.T. Schall, Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken, Shaker Verlag, Düren, 2024.","ieee":"C. W. T. Schall, <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>, vol. Band 2/2024. Düren: Shaker Verlag, 2024.","apa":"Schall, C. W. T. (2024). <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken: Vol. Band 2/2024</i>. Shaker Verlag."},"place":"Düren","status":"public","_id":"50530","publisher":"Shaker Verlag","page":"224","volume":"Band 2/2024","user_id":"44224"},{"issue":"1","publication":"Physical Review Research","date_created":"2024-01-24T15:17:37Z","department":[{"_id":"230"},{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"297"}],"type":"journal_article","author":[{"first_name":"Nils","last_name":"Heinisch","full_name":"Heinisch, Nils","id":"90283"},{"id":"79191","last_name":"Köcher","first_name":"Nikolas","full_name":"Köcher, Nikolas"},{"id":"44172","full_name":"Bauch, David","last_name":"Bauch","first_name":"David"},{"full_name":"Schumacher, Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher","first_name":"Stefan","id":"27271"}],"publication_identifier":{"issn":["2643-1564"]},"year":"2024","title":"Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs","intvolume":"         6","publication_status":"published","date_updated":"2024-01-24T16:07:57Z","language":[{"iso":"eng"}],"article_number":"L012017","doi":"10.1103/PhysRevResearch.6.L012017","citation":{"ieee":"N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. L012017, 2024, doi: <a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">10.1103/PhysRevResearch.6.L012017</a>.","apa":"Heinisch, N., Köcher, N., Bauch, D., &#38; Schumacher, S. (2024). Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. <i>Physical Review Research</i>, <i>6</i>(1), Article L012017. <a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">https://doi.org/10.1103/PhysRevResearch.6.L012017</a>","chicago":"Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">https://doi.org/10.1103/PhysRevResearch.6.L012017</a>.","short":"N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research 6 (2024).","mla":"Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i>, vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">10.1103/PhysRevResearch.6.L012017</a>.","bibtex":"@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">10.1103/PhysRevResearch.6.L012017</a>}, number={1L012017}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and Schumacher, Stefan}, year={2024} }","ama":"Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. <i>Physical Review Research</i>. 2024;6(1). doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.6.L012017\">10.1103/PhysRevResearch.6.L012017</a>"},"project":[{"name":"TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen (C09*)","_id":"173","grant_number":"231447078"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","_id":"50829","publisher":"American Physical Society (APS)","volume":6,"user_id":"90283"},{"publisher":"American Physical Society (APS)","_id":"51156","user_id":"22501","volume":21,"status":"public","oa":"1","citation":{"ieee":"M. Zahn <i>et al.</i>, “Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium ,” <i>Physical Review Applied</i>, vol. 21, no. 2, Art. no. 024007, 2024, doi: <a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">10.1103/physrevapplied.21.024007</a>.","apa":"Zahn, M., Beyreuther, E., Kiseleva, I., Lotfy, A. S., McCluskey, C. J., Maguire, J. R., Suna, A., Rüsing, M., Gregg, J. M., &#38; Eng, L. M. (2024). Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium . <i>Physical Review Applied</i>, <i>21</i>(2), Article 024007. <a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">https://doi.org/10.1103/physrevapplied.21.024007</a>","mla":"Zahn, Manuel, et al. “Equivalent-Circuit Model That Quantitatively Describes Domain-Wall Conductivity in Ferroelectric Lithium .” <i>Physical Review Applied</i>, vol. 21, no. 2, 024007, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">10.1103/physrevapplied.21.024007</a>.","bibtex":"@article{Zahn_Beyreuther_Kiseleva_Lotfy_McCluskey_Maguire_Suna_Rüsing_Gregg_Eng_2024, title={Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium }, volume={21}, DOI={<a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">10.1103/physrevapplied.21.024007</a>}, number={2024007}, journal={Physical Review Applied}, publisher={American Physical Society (APS)}, author={Zahn, Manuel and Beyreuther, Elke and Kiseleva, Iuliia and Lotfy, Ahmed Samir and McCluskey, Conor J. and Maguire, Jesi R. and Suna, Ahmet and Rüsing, Michael and Gregg, J. Marty and Eng, Lukas M.}, year={2024} }","ama":"Zahn M, Beyreuther E, Kiseleva I, et al. Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium . <i>Physical Review Applied</i>. 2024;21(2). doi:<a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">10.1103/physrevapplied.21.024007</a>","short":"M. Zahn, E. Beyreuther, I. Kiseleva, A.S. Lotfy, C.J. McCluskey, J.R. Maguire, A. Suna, M. Rüsing, J.M. Gregg, L.M. Eng, Physical Review Applied 21 (2024).","chicago":"Zahn, Manuel, Elke Beyreuther, Iuliia Kiseleva, Ahmed Samir Lotfy, Conor J. McCluskey, Jesi R. Maguire, Ahmet Suna, Michael Rüsing, J. Marty Gregg, and Lukas M. Eng. “Equivalent-Circuit Model That Quantitatively Describes Domain-Wall Conductivity in Ferroelectric Lithium .” <i>Physical Review Applied</i> 21, no. 2 (2024). <a href=\"https://doi.org/10.1103/physrevapplied.21.024007\">https://doi.org/10.1103/physrevapplied.21.024007</a>."},"quality_controlled":"1","article_number":"024007","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2307.10322"}],"language":[{"iso":"eng"}],"doi":"10.1103/physrevapplied.21.024007","year":"2024","title":"Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium ","publication_identifier":{"issn":["2331-7019"]},"author":[{"first_name":"Manuel","last_name":"Zahn","full_name":"Zahn, Manuel"},{"last_name":"Beyreuther","first_name":"Elke","full_name":"Beyreuther, Elke"},{"full_name":"Kiseleva, Iuliia","last_name":"Kiseleva","first_name":"Iuliia"},{"last_name":"Lotfy","first_name":"Ahmed Samir","full_name":"Lotfy, Ahmed Samir"},{"last_name":"McCluskey","first_name":"Conor J.","full_name":"McCluskey, Conor J."},{"full_name":"Maguire, Jesi R.","last_name":"Maguire","first_name":"Jesi R."},{"full_name":"Suna, Ahmet","first_name":"Ahmet","last_name":"Suna"},{"last_name":"Rüsing","orcid":"0000-0003-4682-4577","first_name":"Michael","full_name":"Rüsing, Michael","id":"22501"},{"full_name":"Gregg, J. Marty","first_name":"J. Marty","last_name":"Gregg"},{"full_name":"Eng, Lukas M.","last_name":"Eng","first_name":"Lukas M."}],"publication_status":"published","date_updated":"2024-02-06T08:08:09Z","article_type":"original","intvolume":"        21","date_created":"2024-02-06T08:02:15Z","type":"journal_article","keyword":["General Physics and Astronomy"],"department":[{"_id":"15"},{"_id":"169"},{"_id":"623"},{"_id":"288"}],"publication":"Physical Review Applied","issue":"2","abstract":[{"text":"Ferroelectric domain wall (DW) conductivity (DWC) can be attributed to two separate mechanisms: (a) the injection/ejection of charge carriers across the Schottky barrier formed at the (metal-)electrode-DW junction and (b) the transport of those charge carriers along the DW. Current-voltage (I-U) characteristics, recorded at variable temperatures from LiNbO3 (LNO) DWs, are clearly able to differentiate between these two contributions. Practically, they allow us to directly quantify the physical parameters relevant to the two mechanisms (a) and (b) mentioned above. These are, for example, the resistance of the DW, the saturation current, the ideality factor, and the Schottky barrier height of the electrode-DW junction. Furthermore, the activation energies needed to initiate the thermally activated electronic transport along the DWs can be extracted. In addition, we show that electronic transport along LNO DWs can be elegantly viewed and interpreted in an adapted semiconductor picture based on a double-diode, double-resistor equivalent-circuit model, the R2D2 model. Finally, our R2D2 model was checked for its universality by successfully fitting the I-U curves of not only z-cut LNO bulk DWs, but equally of z-cut thin-film LNO DWs, and of x-cut thin-film DWs as reported in literature.","lang":"eng"}]},{"_id":"51339","language":[{"iso":"eng"}],"publisher":"Optica Publishing Group","user_id":"216","doi":"10.1364/oe.510319","status":"public","year":"2024","title":"Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Babai-Hemati, Jonas","last_name":"Babai-Hemati","first_name":"Jonas"},{"last_name":"vom Bruch","first_name":"Felix","full_name":"vom Bruch, Felix","id":"71245"},{"full_name":"Herrmann, Harald","last_name":"Herrmann","first_name":"Harald","id":"216"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"}],"publication_status":"published","date_updated":"2024-02-13T13:09:51Z","date_created":"2024-02-13T13:03:01Z","keyword":["Atomic and Molecular Physics","and Optics"],"type":"journal_article","department":[{"_id":"15"},{"_id":"623"},{"_id":"288"}],"publication":"Optics Express","citation":{"ama":"Babai-Hemati J, vom Bruch F, Herrmann H, Silberhorn C. Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters. <i>Optics Express</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1364/oe.510319\">10.1364/oe.510319</a>","bibtex":"@article{Babai-Hemati_vom Bruch_Herrmann_Silberhorn_2024, title={Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters}, DOI={<a href=\"https://doi.org/10.1364/oe.510319\">10.1364/oe.510319</a>}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babai-Hemati, Jonas and vom Bruch, Felix and Herrmann, Harald and Silberhorn, Christine}, year={2024} }","mla":"Babai-Hemati, Jonas, et al. “Tailored Second Harmonic Generation InTi-Diffused PPLN Waveguides Usingmicro-Heaters.” <i>Optics Express</i>, Optica Publishing Group, 2024, doi:<a href=\"https://doi.org/10.1364/oe.510319\">10.1364/oe.510319</a>.","chicago":"Babai-Hemati, Jonas, Felix vom Bruch, Harald Herrmann, and Christine Silberhorn. “Tailored Second Harmonic Generation InTi-Diffused PPLN Waveguides Usingmicro-Heaters.” <i>Optics Express</i>, 2024. <a href=\"https://doi.org/10.1364/oe.510319\">https://doi.org/10.1364/oe.510319</a>.","short":"J. Babai-Hemati, F. vom Bruch, H. Herrmann, C. Silberhorn, Optics Express (2024).","apa":"Babai-Hemati, J., vom Bruch, F., Herrmann, H., &#38; Silberhorn, C. (2024). Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters. <i>Optics Express</i>. <a href=\"https://doi.org/10.1364/oe.510319\">https://doi.org/10.1364/oe.510319</a>","ieee":"J. Babai-Hemati, F. vom Bruch, H. Herrmann, and C. Silberhorn, “Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters,” <i>Optics Express</i>, 2024, doi: <a href=\"https://doi.org/10.1364/oe.510319\">10.1364/oe.510319</a>."},"project":[{"name":"PhoQC: PhoQC: Photonisches Quantencomputing","_id":"266","grant_number":"PROFILNRW-2020-067"}]},{"doi":"10.1088/2515-7647/ad1a3b","user_id":"30525","main_file_link":[{"open_access":"1","url":"https://iopscience.iop.org/article/10.1088/2515-7647/ad1a3b"}],"_id":"51519","publisher":"IOP Publishing","language":[{"iso":"eng"}],"date_updated":"2024-02-20T07:03:00Z","publication_status":"published","title":"Roadmap on electromagnetic metamaterials and metasurfaces","year":"2024","status":"public","author":[{"last_name":"Cui","first_name":"Tie Jun","full_name":"Cui, Tie Jun"},{"full_name":"Zhang, Shuang","first_name":"Shuang","last_name":"Zhang"},{"last_name":"Alu","first_name":"Andrea","full_name":"Alu, Andrea"},{"full_name":"Wegener, Martin","last_name":"Wegener","first_name":"Martin"},{"first_name":"John","last_name":"Pendry","full_name":"Pendry, John"},{"first_name":"Jie","last_name":"Luo","full_name":"Luo, Jie"},{"first_name":"Yun","last_name":"Lai","full_name":"Lai, Yun"},{"last_name":"Wang","first_name":"Zuojia","full_name":"Wang, Zuojia"},{"full_name":"Lin, Xiao","last_name":"Lin","first_name":"Xiao"},{"first_name":"Hongsheng","last_name":"Chen","full_name":"Chen, Hongsheng"},{"first_name":"Ping","last_name":"Chen","full_name":"Chen, Ping"},{"full_name":"Wu, Rui-Xin","first_name":"Rui-Xin","last_name":"Wu"},{"full_name":"Yin, Yuhang","first_name":"Yuhang","last_name":"Yin"},{"last_name":"Zhao","first_name":"Pengfei","full_name":"Zhao, Pengfei"},{"full_name":"Chen, Huanyang","first_name":"Huanyang","last_name":"Chen"},{"last_name":"Li","first_name":"Yue","full_name":"Li, Yue"},{"full_name":"Zhou, Ziheng","first_name":"Ziheng","last_name":"Zhou"},{"first_name":"Nader","last_name":"Engheta","full_name":"Engheta, Nader"},{"full_name":"Asadchy, V. 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Yu.","last_name":"Bykov"},{"first_name":"Alexey V","last_name":"Krasavin","full_name":"Krasavin, Alexey V"},{"last_name":"Zayats","first_name":"Anatoly V","full_name":"Zayats, Anatoly V"},{"full_name":"McDonnell, Cormac","last_name":"McDonnell","first_name":"Cormac"},{"full_name":"Ellenbogen, Tal","first_name":"Tal","last_name":"Ellenbogen"},{"full_name":"Luo, Xiangang","first_name":"Xiangang","last_name":"Luo"},{"full_name":"Pu, Mingbo","first_name":"Mingbo","last_name":"Pu"},{"first_name":"Francisco J","last_name":"Garcia-Vidal","full_name":"Garcia-Vidal, Francisco J"},{"full_name":"Liu, Liangliang","last_name":"Liu","first_name":"Liangliang"},{"last_name":"Li","first_name":"Zhuo","full_name":"Li, Zhuo"},{"last_name":"Tang","first_name":"Wenxuan","full_name":"Tang, Wenxuan"},{"full_name":"Ma, Hui Feng","last_name":"Ma","first_name":"Hui Feng"},{"first_name":"Jingjing","last_name":"Zhang","full_name":"Zhang, Jingjing"},{"full_name":"Luo, Yu","last_name":"Luo","first_name":"Yu"},{"first_name":"Xuanru","last_name":"Zhang","full_name":"Zhang, Xuanru"},{"first_name":"Hao Chi","last_name":"Zhang","full_name":"Zhang, Hao Chi"},{"full_name":"He, Pei Hang","last_name":"He","first_name":"Pei Hang"},{"full_name":"Zhang, Le Peng","first_name":"Le Peng","last_name":"Zhang"},{"last_name":"Wan","first_name":"Xiang","full_name":"Wan, Xiang"},{"full_name":"Wu, Haotian","first_name":"Haotian","last_name":"Wu"},{"full_name":"Liu, Shuo","last_name":"Liu","first_name":"Shuo"},{"last_name":"Jiang","first_name":"Wei Xiang","full_name":"Jiang, Wei Xiang"},{"first_name":"Xin Ge","last_name":"Zhang","full_name":"Zhang, Xin Ge"},{"full_name":"Qiu, Chengwei","last_name":"Qiu","first_name":"Chengwei"},{"full_name":"Ma, Qian","last_name":"Ma","first_name":"Qian"},{"full_name":"Liu, Che","first_name":"Che","last_name":"Liu"},{"first_name":"Long","last_name":"Li","full_name":"Li, Long"},{"last_name":"Han","first_name":"Jiaqi","full_name":"Han, Jiaqi"},{"last_name":"Li","first_name":"Lianlin","full_name":"Li, Lianlin"},{"full_name":"Cotrufo, Michele","first_name":"Michele","last_name":"Cotrufo"},{"first_name":"Christophe","last_name":"Caloz","full_name":"Caloz, Christophe"},{"last_name":"Deck-Léger","first_name":"Z.-L.","full_name":"Deck-Léger, Z.-L."},{"full_name":"Bahrami, A.","last_name":"Bahrami","first_name":"A."},{"full_name":"Céspedes, O.","last_name":"Céspedes","first_name":"O."},{"last_name":"Galiffi","first_name":"Emanuele","full_name":"Galiffi, Emanuele"},{"first_name":"P. A.","last_name":"Huidobro","full_name":"Huidobro, P. A."},{"full_name":"Cheng, Qiang","first_name":"Qiang","last_name":"Cheng"},{"full_name":"Dai, Jun Yan","last_name":"Dai","first_name":"Jun Yan"},{"full_name":"Ke, Jun Cheng","last_name":"Ke","first_name":"Jun Cheng"},{"full_name":"Zhang, Lei","first_name":"Lei","last_name":"Zhang"},{"first_name":"Vincenzo","last_name":"Galdi","full_name":"Galdi, Vincenzo"},{"first_name":"Marco","last_name":"Di Renzo","full_name":"Di Renzo, Marco"}],"publication_identifier":{"issn":["2515-7647"]},"type":"journal_article","keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"oa":"1","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"date_created":"2024-02-20T06:58:48Z","publication":"Journal of Physics: Photonics","citation":{"short":"T.J. Cui, S. Zhang, A. Alu, M. Wegener, J. Pendry, J. Luo, Y. Lai, Z. Wang, X. Lin, H. Chen, P. Chen, R.-X. Wu, Y. Yin, P. Zhao, H. Chen, Y. Li, Z. Zhou, N. Engheta, V.S. Asadchy, C. Simovski, S.A. Tretyakov, B. Yang, S.D. Campbell, Y. Hao, D.H. Werner, S. Sun, L. Zhou, S. Xu, H.-B. Sun, Z. Zhou, Z. Li, G. Zheng, X. Chen, T. Li, S.-N. Zhu, J. Zhou, J. Zhao, Z. Liu, Y. Zhang, Q. Zhang, M. Gu, S. Xiao, Y. Liu, X. Zhang, Y. Tang, G. Li, T. Zentgraf, K. Koshelev, Y.S. Kivshar, X. Li, T. Badloe, L. Huang, J. Rho, S. Wang, D.P. Tsai, A.Yu. Bykov, A.V. Krasavin, A.V. Zayats, C. McDonnell, T. Ellenbogen, X. Luo, M. Pu, F.J. Garcia-Vidal, L. Liu, Z. Li, W. Tang, H.F. Ma, J. Zhang, Y. Luo, X. Zhang, H.C. Zhang, P.H. He, L.P. Zhang, X. Wan, H. Wu, S. Liu, W.X. Jiang, X.G. Zhang, C. Qiu, Q. Ma, C. Liu, L. Li, J. Han, L. Li, M. Cotrufo, C. Caloz, Z.-L. Deck-Léger, A. Bahrami, O. Céspedes, E. Galiffi, P.A. Huidobro, Q. Cheng, J.Y. Dai, J.C. Ke, L. Zhang, V. Galdi, M. Di Renzo, Journal of Physics: Photonics (2024).","chicago":"Cui, Tie Jun, Shuang Zhang, Andrea Alu, Martin Wegener, John Pendry, Jie Luo, Yun Lai, et al. “Roadmap on Electromagnetic Metamaterials and Metasurfaces.” <i>Journal of Physics: Photonics</i>, 2024. <a href=\"https://doi.org/10.1088/2515-7647/ad1a3b\">https://doi.org/10.1088/2515-7647/ad1a3b</a>.","apa":"Cui, T. J., Zhang, S., Alu, A., Wegener, M., Pendry, J., Luo, J., Lai, Y., Wang, Z., Lin, X., Chen, H., Chen, P., Wu, R.-X., Yin, Y., Zhao, P., Chen, H., Li, Y., Zhou, Z., Engheta, N., Asadchy, V. S., … Di Renzo, M. (2024). Roadmap on electromagnetic metamaterials and metasurfaces. <i>Journal of Physics: Photonics</i>. <a href=\"https://doi.org/10.1088/2515-7647/ad1a3b\">https://doi.org/10.1088/2515-7647/ad1a3b</a>","ieee":"T. J. Cui <i>et al.</i>, “Roadmap on electromagnetic metamaterials and metasurfaces,” <i>Journal of Physics: Photonics</i>, 2024, doi: <a href=\"https://doi.org/10.1088/2515-7647/ad1a3b\">10.1088/2515-7647/ad1a3b</a>.","ama":"Cui TJ, Zhang S, Alu A, et al. Roadmap on electromagnetic metamaterials and metasurfaces. <i>Journal of Physics: Photonics</i>. 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(2024). <i>Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit)</i>.","ieee":"L. Hücker, <i>Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit)</i>. 2024.","chicago":"Hücker, Lars. <i>Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit)</i>, 2024.","short":"L. Hücker, Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit), 2024."}},{"extern":"1","citation":{"short":"M. Richters, Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur , 2024.","chicago":"Richters, Maximilian. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur </i>, 2024.","ieee":"M. Richters, <i>Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur </i>. 2024.","apa":"Richters, M. (2024). <i>Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur </i>.","bibtex":"@book{Richters_2024, title={Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur }, author={Richters, Maximilian}, year={2024} }","ama":"Richters M. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur </i>.; 2024.","mla":"Richters, Maximilian. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur </i>. 2024."},"department":[{"_id":"147"},{"_id":"9"},{"_id":"321"}],"type":"dissertation","date_created":"2024-02-21T18:03:11Z","publication_status":"published","date_updated":"2024-02-21T18:09:39Z","author":[{"full_name":"Richters, Maximilian","last_name":"Richters","first_name":"Maximilian"}],"publication_identifier":{"unknown":["978-3-8440-9390-2"]},"title":"Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur ","year":"2024","status":"public","user_id":"38221","_id":"51732","language":[{"iso":"ger"}]},{"year":"2024","title":"Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums","status":"public","author":[{"last_name":"Vogelsang","first_name":"Christoph","full_name":"Vogelsang, Christoph","id":"4245"},{"id":"28542","full_name":"Meier, Jana","first_name":"Jana","last_name":"Meier","orcid":"https://orcid.org/0000-0002-6756-9440"}],"publication_status":"published","date_updated":"2024-02-27T07:00:49Z","page":"277-293","_id":"52088","publisher":"Verlag Julius Klinkhardt","language":[{"iso":"ger"}],"user_id":"28542","doi":"10.35468/6068","editor":[{"first_name":"Anke","last_name":"Schöning","full_name":"Schöning, Anke"},{"first_name":"Michaela","last_name":"Heer","full_name":"Heer, Michaela"},{"first_name":"Michelle","last_name":"Pahl","full_name":"Pahl, Michelle"},{"last_name":"Diehr","first_name":"Frank","full_name":"Diehr, Frank"},{"full_name":"Parusel, Eva","first_name":"Eva","last_name":"Parusel"},{"last_name":"Tinnefeld","first_name":"Anja","full_name":"Tinnefeld, Anja"},{"full_name":"Walke, Jutta","last_name":"Walke","first_name":"Jutta"}],"publication":"Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium","citation":{"mla":"Vogelsang, Christoph, and Jana Meier. “Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums.” <i>Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium</i>, edited by Anke Schöning et al., Verlag Julius Klinkhardt, 2024, pp. 277–93, doi:<a href=\"https://doi.org/10.35468/6068\">10.35468/6068</a>.","apa":"Vogelsang, C., &#38; Meier, J. (2024). Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums. In A. Schöning, M. Heer, M. Pahl, F. Diehr, E. Parusel, A. Tinnefeld, &#38; J. Walke (Eds.), <i>Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium</i> (pp. 277–293). Verlag Julius Klinkhardt. <a href=\"https://doi.org/10.35468/6068\">https://doi.org/10.35468/6068</a>","ieee":"C. Vogelsang and J. Meier, “Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums,” in <i>Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium</i>, A. Schöning, M. Heer, M. Pahl, F. Diehr, E. Parusel, A. Tinnefeld, and J. Walke, Eds. Bad Heilbrunn: Verlag Julius Klinkhardt, 2024, pp. 277–293.","chicago":"Vogelsang, Christoph, and Jana Meier. “Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums.” In <i>Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium</i>, edited by Anke Schöning, Michaela Heer, Michelle Pahl, Frank Diehr, Eva Parusel, Anja Tinnefeld, and Jutta Walke, 277–93. Bad Heilbrunn: Verlag Julius Klinkhardt, 2024. <a href=\"https://doi.org/10.35468/6068\">https://doi.org/10.35468/6068</a>.","short":"C. Vogelsang, J. Meier, in: A. Schöning, M. Heer, M. Pahl, F. Diehr, E. Parusel, A. Tinnefeld, J. Walke (Eds.), Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium, Verlag Julius Klinkhardt, Bad Heilbrunn, 2024, pp. 277–293.","ama":"Vogelsang C, Meier J. Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums. In: Schöning A, Heer M, Pahl M, et al., eds. <i>Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium</i>. Verlag Julius Klinkhardt; 2024:277-293. doi:<a href=\"https://doi.org/10.35468/6068\">10.35468/6068</a>","bibtex":"@inbook{Vogelsang_Meier_2024, place={Bad Heilbrunn}, title={Sinnvolle Ergänzung oder bewusster Bruch? - Tätigkeitsfelder im Berufsfeldpraktikum innerhalb des Lehramtsstudiums}, DOI={<a href=\"https://doi.org/10.35468/6068\">10.35468/6068</a>}, booktitle={Das Berufsfeldpraktikum als Professionalisierungselement - Grundlagen, Konzepte, Beispiele für das Lehramtsstudium}, publisher={Verlag Julius Klinkhardt}, author={Vogelsang, Christoph and Meier, Jana}, editor={Schöning, Anke and Heer, Michaela and Pahl, Michelle and Diehr, Frank and Parusel, Eva and Tinnefeld, Anja and Walke, Jutta}, year={2024}, pages={277–293} }"},"date_created":"2024-02-27T06:59:11Z","place":"Bad Heilbrunn","type":"book_chapter","department":[{"_id":"4"},{"_id":"33"}]},{"publication":"PAMM","citation":{"apa":"Hamdoun, A., &#38; Mahnken, R. (2024). Experimental investigations of uniaxial and biaxial cold stretching within PC‐films and bars using optical measurements. <i>PAMM</i>. <a href=\"https://doi.org/10.1002/pamm.202300114\">https://doi.org/10.1002/pamm.202300114</a>","ieee":"A. Hamdoun and R. Mahnken, “Experimental investigations of uniaxial and biaxial cold stretching within PC‐films and bars using optical measurements,” <i>PAMM</i>, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202300114\">10.1002/pamm.202300114</a>.","short":"A. Hamdoun, R. Mahnken, PAMM (2024).","chicago":"Hamdoun, Ayoub, and Rolf Mahnken. “Experimental Investigations of Uniaxial and Biaxial Cold Stretching within PC‐films and Bars Using Optical Measurements.” <i>PAMM</i>, 2024. <a href=\"https://doi.org/10.1002/pamm.202300114\">https://doi.org/10.1002/pamm.202300114</a>.","mla":"Hamdoun, Ayoub, and Rolf Mahnken. “Experimental Investigations of Uniaxial and Biaxial Cold Stretching within PC‐films and Bars Using Optical Measurements.” <i>PAMM</i>, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202300114\">10.1002/pamm.202300114</a>.","ama":"Hamdoun A, Mahnken R. Experimental investigations of uniaxial and biaxial cold stretching within PC‐films and bars using optical measurements. <i>PAMM</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1002/pamm.202300114\">10.1002/pamm.202300114</a>","bibtex":"@article{Hamdoun_Mahnken_2024, title={Experimental investigations of uniaxial and biaxial cold stretching within PC‐films and bars using optical measurements}, DOI={<a href=\"https://doi.org/10.1002/pamm.202300114\">10.1002/pamm.202300114</a>}, journal={PAMM}, publisher={Wiley}, author={Hamdoun, Ayoub and Mahnken, Rolf}, year={2024} }"},"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Polycarbonate (PC) is an amorphous polymer that is an extremely robust material with a high tenacity, and thus suitable for a lightweight construction with glass‐like transparency. Due to these advantageous properties, PC is often used in industry for example in medical devices, automotive headlamps, sporting equipment, electronics, and a variety of other products. PC is often subjected to uniaxial and biaxial loading conditions. Therefore, reliable material models have to take into account the various resulting experimental effects. For those reasons, we investigate PC specimens under uniaxial and biaxial loading by using different stretch rates and loading scenarios. In addition to that, we propose methods for optical measurement of local stretches to obtain the approximated local true stress. In future work, the displacement fields and the resulting reaction forces will be used for parameter identification of constitutive equations.</jats:p>"}],"quality_controlled":"1","date_created":"2024-02-29T13:53:13Z","type":"journal_article","keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics"],"department":[{"_id":"9"},{"_id":"154"},{"_id":"321"}],"status":"public","title":"Experimental investigations of uniaxial and biaxial cold stretching within PC‐films and bars using optical measurements","year":"2024","publication_identifier":{"issn":["1617-7061","1617-7061"]},"author":[{"full_name":"Hamdoun, Ayoub","first_name":"Ayoub","last_name":"Hamdoun"},{"id":"335","first_name":"Rolf","last_name":"Mahnken","full_name":"Mahnken, Rolf"}],"publication_status":"published","date_updated":"2024-02-29T13:58:38Z","_id":"52217","language":[{"iso":"eng"}],"publisher":"Wiley","user_id":"335","doi":"10.1002/pamm.202300114"}]