@article{59507,
  abstract     = {{Differential equations posed on quadratic matrix Lie groups arise in the context of classical mechanics and quantum dynamical systems. Lie group numerical integrators preserve the constants of motions defining the Lie group. Thus, they respect important physical laws of the dynamical system, such as unitarity and energy conservation in the context of quantum dynamical systems, for instance. In this article we develop a high-order commutator free Lie group integrator for non-autonomous differential equations evolving on quadratic Lie groups. Instead of matrix exponentials, which are expensive to evaluate and need to be approximated by appropriate rational functions in order to preserve the Lie group structure, the proposed method is obtained as a composition of Cayley transforms which naturally respect the structure of quadratic Lie groups while being computationally efficient to evaluate. Unlike Cayley-Magnus methods the method is also free from nested matrix commutators.}},
  author       = {{Wembe Moafo, Boris Edgar and Offen, Cristian  and Maslovskaya, Sofya and Ober-Blöbaum, Sina and Singh, Pranav}},
  journal      = {{J. Comput. Appl. Math}},
  number       = {{15}},
  title        = {{{Commutator-free Cayley methods}}},
  doi          = {{10.1016/j.cam.2025.117184}},
  volume       = {{477}},
  year         = {{2025}},
}

@inproceedings{63157,
  abstract     = {{Three-phase cascaded H-bridge converters (CHBs) in star configuration require reliable current controllers to evenly charge the module DC-link capacitors. Conventionally, a current control in dq-coordinates is utilized. At steady state, the resulting calculated reference arm voltages are sinusoidal, have identical amplitudes and show a phase shift of 120 degree to each other. For balanced grid inductors, the resulting grid currents also have the same amplitude. However, own simulations show that unbalanced grid inductors always lead to different grid current amplitudes (4% difference in this case). As a result, the averaged charging module powers differ and the peak DC-link capacitor voltage rises as well. In the first step, an adaptation of an existing zero-sequence voltage injection is proposed. For balanced grid inductors, it converges to the 3rd harmonic voltage injection which can reduce the peak-to-peak DC-link voltage ripple up by to 50% and balances the power between the phases. However, unbalanced grid inductors still lead to the same unbalanced grid currents of 4%. Therefore, a new method with 4 integrators based on linear regression is proposed to achieve sinusoidal grid currents for unbalanced inductors. The proposed method has a similar transient dynamic as the conventional dq control, but balances the grid currents nearly ideally. Simulation results of a 1MW cascaded H bridge and a scaled-down prototype verify the proposed method.}},
  author       = {{Unruh, Roland and Böcker, Joachim and Schafmeister, Frank}},
  booktitle    = {{2025 Energy Conversion Congress & Expo Europe (ECCE Europe)}},
  keywords     = {{Cascaded H-Bridge, Current Control, dq Transformation, Linear Regression, Unbalanced Inductors}},
  location     = {{Birmingham, United Kingdom}},
  publisher    = {{IEEE}},
  title        = {{{Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters}}},
  doi          = {{10.1109/ecce-europe62795.2025.11238538}},
  year         = {{2025}},
}

@article{63160,
  author       = {{Rose, Hendrik and Schumacher, Stefan and Meier, Torsten}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  number       = {{24}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons}}},
  doi          = {{10.1103/528f-7smh}},
  volume       = {{112}},
  year         = {{2025}},
}

@inbook{61239,
  abstract     = {{In diesem Beitrag wird ein Überblick gegeben, welche Forschung zu Digitalisierung und künstliche Intelligenz (KI) in den Bereichen Verwaltung, Forschung, Studium und Lehre sowie Governance von Hochschulen besteht. Der Fokus liegt hierbei auf aktuellen Forschungsergebnissen seit der Coronapandemie. Zentral sind Fragen nach Effektivität und Effizienz durch Digitalisierung und KI und danach, wie Verbesserungen angestoßen werden können.}},
  author       = {{Steinhardt, Isabel}},
  booktitle    = {{Hochschulforschung}},
  editor       = {{Pasternach, Peer and Reinmann, Gabi and Schneijderberg, Christian}},
  isbn         = {{9783748943334}},
  keywords     = {{Digitalisierung, Künstliche Intelligenz, Forschung, Lehre, Governance, Verwaltung}},
  pages        = {{197--206}},
  publisher    = {{Nomos}},
  title        = {{{Digitalisierung und Künstliche Intelligenz}}},
  doi          = {{10.5771/9783748943334-197}},
  year         = {{2025}},
}

@inbook{61237,
  abstract     = {{In diesem Beitrag wird zunächst die historische Entstehung von Open Science kurz skizziert und definiert, was unter diesem Begriff zu verstehen ist. Daran anschließend werden die Open-Science-Praktiken Open Data, Open Access, Open Source, Open Methodology und Open Peer Review dargestellt und diskutiert, welche Forschungserkenntnisse zu Open Science vorhanden sind. Im Schluss werden Forschungsdesiderate aufgegriffen und die Implikationen von Open Science für die Wissenschaft erläutert.}},
  author       = {{Steinhardt, Isabel and Röwert, Ronny}},
  booktitle    = {{Hochschulforschung}},
  editor       = {{Pasternack, Peer and Reinmann, Gabi and Schneijderberg, Christian }},
  isbn         = {{9783748943334}},
  keywords     = {{Open Data, Open Access, Open Source, Open Methodology, Open Peer Review}},
  pages        = {{487--496}},
  publisher    = {{Nomos}},
  title        = {{{Open Science}}},
  doi          = {{10.5771/9783748943334-487}},
  year         = {{2025}},
}

@article{62861,
  author       = {{Laneve, Alessandro and Ronco, Giuseppe and Beccaceci, Mattia and Barigelli, Paolo and Salusti, Francesco and Claro-Rodriguez, Nicolas and De Pascalis, Giorgio and Suprano, Alessia and Chiaudano, Leone and Schöll, Eva and Hanschke, Lukas and Krieger, Tobias M. and Buchinger, Quirin and Covre da Silva, Saimon F. and Neuwirth, Julia and Stroj, Sandra and Höfling, Sven and Huber-Loyola, Tobias and Usuga Castaneda, Mario A. and Carvacho, Gonzalo and Spagnolo, Nicolò and Rota, Michele B. and Basso Basset, Francesco and Rastelli, Armando and Sciarrino, Fabio and Jöns, Klaus and Trotta, Rinaldo}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Quantum teleportation with dissimilar quantum dots over a hybrid quantum network}}},
  doi          = {{10.1038/s41467-025-65911-9}},
  volume       = {{16}},
  year         = {{2025}},
}

@article{60624,
  author       = {{Hagengruber, Ruth Edith and Velema, Floris}},
  journal      = {{Journal of Didactics of Philosophy}},
  title        = {{{Teaching Hypotheses with Émilie du Châtelet}}},
  doi          = {{https://doi.org/10.46586/JDPh.2025.12196}},
  year         = {{2025}},
}

@misc{63185,
  author       = {{Schmidt, Rebecca}},
  booktitle    = {{ Sozialwissenschaftliche Methodenberatung}},
  title        = {{{KI als Herausforderungen für die qualitative Methodenlehre – ein Diskussionsaufruf!}}},
  year         = {{2025}},
}

@article{63192,
  abstract     = {{Lithium niobate (LiNbO3) is a widely used material with several desirable physical properties, such as high second-order nonlinear optical and strong electro-optical effects. Thus LiNbO3 is used for various applications such as electro-optic modulation or nonlinear frequency conversion and mixing. But LiNbO3 also exhibits a strong photorefractive effect, which limits the intensity of the optical fields involved. Various approaches to reduce the photorefractive effect have been investigated, such as increasing the temperature, doping the crystal or using different waveguide designs in LiNbO3. Here, we present an analysis of the approach to increase the photorefractive damage threshold by using different waveguide designs. Contrary to previous claims and investigations, our SHG measurements revealed no significant difference in resistance to photorefractive damage when comparing conventional Ti-doped channel waveguides and Ti-doped diced ridge waveguides in LiNbO3. Furthermore, we have investigated the effect of photorefractive cleaning and curing using a light field at 532 nm. Here, we observe a reduction in the photorefractive effect at room temperature during and after SHG measurements, which is an easy alternative to conventional approaches.}},
  author       = {{Kirsch, Michelle and Kießler, Christian and Lengeling, Sebastian and Stefszky, Michael and Eigner, Christof and Herrmann, Harald and Silberhorn, Christine}},
  issn         = {{0030-3992}},
  journal      = {{Optics & Laser Technology}},
  publisher    = {{Elsevier BV}},
  title        = {{{Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides}}},
  doi          = {{10.1016/j.optlastec.2025.114260}},
  volume       = {{193}},
  year         = {{2025}},
}

@inbook{63189,
  author       = {{Schlieper, Hendrik}},
  booktitle    = {{Cálculo y error. Recontando a Calderón. XX Coloquio Anglogermano sobre Calderón}},
  editor       = {{Ehrlicher, Hanno  and Grünnagel, Christian}},
  pages        = {{295--312}},
  publisher    = {{Edition Reichenberger}},
  title        = {{{La corte como mare errorum en La Cisma de Ingalaterra}}},
  year         = {{2025}},
}

@inproceedings{63193,
  abstract     = {{The integration of data-driven models and specifically machine learning for conditon monitoring and predictive maintenance into companies, especially small and medium-sized enterprises, offers significant opportunities in reducing costs, operating more sustainably, and maintaining long-term competitiveness. However, many small and medium-sized enterprises lack the necessary resources and expertise to derive knowledge from data and integrate their own machine learning based solutions. To address this challenge, a framework is presented that enables the automated generation of data-driven models with a particular focus on condition monitoring and predictive maintenance, but applicable to other use cases as well. Using a dataset from the 2022 data challenge of the prognostics and health management society, it is demonstrated that the framework can generate high-performing models, achieving F1-scores up to 0.998, exemplarily for a classification task.}},
  author       = {{Löwen, Alexander and Quirin, Dennis and Hesse, Marc and Aimiyekagbon, Osarenren Kennedy and Sextro, Walter}},
  booktitle    = {{2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)}},
  location     = {{Porto}},
  publisher    = {{IEEE}},
  title        = {{{Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems}}},
  doi          = {{10.1109/etfa65518.2025.11205799}},
  year         = {{2025}},
}

@inproceedings{63199,
  author       = {{Hövel, Gilbert Georg and Brinkmeier, Tim and Trang, Simon Thanh-Nam}},
  booktitle    = {{Proceedings of the International Conference on Information Systems 2025}},
  title        = {{{Trust Me If You Can! Examining the Role of Ransomware Darknet Platforms in Building Trust Between Hackers and Victims}}},
  year         = {{2025}},
}

@article{63213,
  abstract     = {{<jats:p>Quantum uncertainty relations impose fundamental limits on the joint knowledge that can be acquired from complementary observables: Perfect knowledge of a quantum state in one basis implies maximal indetermination in all other mutually unbiased bases (MUBs). Uncertainty relations derived from joint properties of the MUBs are generally assumed to be uniform, irrespective of the specific observables chosen within a set. In this work, we demonstrate instead that the uncertainty relations can depend on the choice of observables. Through both experimental observation and numerical methods, we show that selecting different sets of three MUBs in a five-dimensional quantum system results in distinct uncertainty bounds, i.e., in varying degrees of complementarity, in terms of both entropy and variance.</jats:p>}},
  author       = {{Serino, Laura Maria and Chesi, Giovanni and Brecht, Benjamin and Maccone, Lorenzo and Macchiavello, Chiara and Silberhorn, Christine}},
  issn         = {{2643-1564}},
  journal      = {{Physical Review Research}},
  number       = {{3}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations}}},
  doi          = {{10.1103/v24q-sl6n}},
  volume       = {{7}},
  year         = {{2025}},
}

@inbook{63212,
  author       = {{Riese, Josef and Reinhold, Peter}},
  booktitle    = {{Handbuch Lehrerinnen- und Lehrerbildung}},
  editor       = {{Cramer, Colin and König, Johannes  and Rothland, Martin}},
  isbn         = {{978-3-8365-6544-6}},
  publisher    = {{Verlag Julius Klinkhardt}},
  title        = {{{Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt}}},
  doi          = {{10.35468/hblb2025-076}},
  year         = {{2025}},
}

@unpublished{63187,
  author       = {{Kidner, Arnott Jeffery Joel and Steffen, Eckhard and Yu, Weiqiang}},
  booktitle    = {{arXiv:2512.14285}},
  title        = {{{Edge-coloring 4- and 5-regular projective planar graphs with no Petersen-minor}}},
  year         = {{2025}},
}

@article{63214,
  abstract     = {{<jats:p>We study a possibility of measuring the time-resolved second-order autocorrelation function of one of two beams generated in type-II parametric down-conversion by means of temporal magnification of this beam, bringing its correlation time from the picosecond to the nanosecond scale, which can be resolved by modern photodetectors. We show that such a measurement enables one to infer directly the degree of global coherence of that beam, which is linked by a simple relation to the number of modes characterizing the entanglement between the two generated beams. We illustrate the proposed method by an example of photon pairs generated in a periodically poled potassium titanyl phosphate (KTP) crystal with a symmetric group velocity matching for various durations of the pump pulse, resulting in different numbers of modes. Our theoretical model also shows that the magnified double-heralded autocorrelation function of one beam exhibits a local maximum around zero delay time, corresponding to photon bunching at a short time scale.</jats:p>}},
  author       = {{Horoshko, Dmitri B. and Srivastava, Shivang and Sośnicki, Filip and Mikołajczyk, Michał and Karpiński, Michał and Brecht, Benjamin and Kolobov, Mikhail I.}},
  issn         = {{2469-9926}},
  journal      = {{Physical Review A}},
  number       = {{2}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Time-resolved second-order autocorrelation function of parametric down-conversion}}},
  doi          = {{10.1103/7ckm-tm3r}},
  volume       = {{112}},
  year         = {{2025}},
}

@article{63215,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>High-dimensional time-frequency encodings have the potential to significantly advance quantum information science; however, practical applications require precise knowledge of the encoded quantum states, which becomes increasingly challenging for larger Hilbert spaces. Self-guided tomography (SGT) has emerged as a practical and scalable technique for this purpose in the spatial domain. Here, we apply SGT to estimate time-frequency states using a multi-output quantum pulse gate. We achieve fidelities of more than 99% for 3- and 5-dimensional states without the need for calibration or post-processing. We demonstrate the robustness of SGT against statistical and environmental noise, highlighting its efficacy in the photon-starved regime typical of quantum information applications.</jats:p>}},
  author       = {{Serino, Laura Maria and Rambach, Markus and Brecht, Benjamin and Romero, Jacquiline and Silberhorn, Christine}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  number       = {{2}},
  publisher    = {{IOP Publishing}},
  title        = {{{Self-guided tomography of time-frequency qudits}}},
  doi          = {{10.1088/2058-9565/adb0ea}},
  volume       = {{10}},
  year         = {{2025}},
}

@inproceedings{60746,
  author       = {{Jakobeit, Darius and Peña López, Mario and Schenke, Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}},
  booktitle    = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}},
  publisher    = {{IEEE}},
  title        = {{{Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set Direct Torque Control of Permanent Magnet Synchronous Motors}}},
  doi          = {{10.1109/iemdc60492.2025.11061179}},
  year         = {{2025}},
}

@inproceedings{60745,
  author       = {{Haucke-Korber, Barnabas and Aung, Nyi Nyi and Schenke, Maximilian and Peña López, Mario and Jakobeit, Darius and Wallscheid, Oliver}},
  booktitle    = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}},
  publisher    = {{IEEE}},
  title        = {{{Reinforcement Learning-based Direct Torque Control of Externally Excited Synchronous Motors: a Proof of Concept}}},
  doi          = {{10.1109/iemdc60492.2025.11061093}},
  year         = {{2025}},
}

@inproceedings{60744,
  author       = {{Peña López, Mario and Schenke, Maximilian and Jakobeit, Darius and Haucke-Korber, Barnabas and Wallscheid, Oliver}},
  booktitle    = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}},
  publisher    = {{IEEE}},
  title        = {{{Reinforcement Learning Control of Three-Level Converter Permanent Magnet Synchronous Machine Drives}}},
  doi          = {{10.1109/iemdc60492.2025.11061032}},
  year         = {{2025}},
}