TY - JOUR A1 - Abbas, Amira A1 - Ambainis, Andris A1 - Augustino, Brandon A1 - Bärtschi, Andreas A1 - Buhrman, Harry A1 - Coffrin, Carleton A1 - Cortiana, Giorgio A1 - Dunjko, Vedran A1 - Egger, Daniel J. A1 - Elmegreen, Bruce G. A1 - Franco, Nicola A1 - Fratini, Filippo A1 - Fuller, Bryce A1 - Gacon, Julien A1 - Gonciulea, Constantin A1 - Gribling, Sander A1 - Gupta, Swati A1 - Hadfield, Stuart A1 - Heese, Raoul A1 - Kircher, Gerhard A1 - Kleinert, Thomas A1 - Koch, Thorsten A1 - Korpas, Georgios A1 - Lenk, Steve A1 - Marecek, Jakub A1 - Markov, Vanio A1 - Mazzola, Guglielmo A1 - Mensa, Stefano A1 - Mohseni, Naeimeh A1 - Nannicini, Giacomo A1 - O’Meara, Corey A1 - Tapia, Elena Peña A1 - Pokutta, Sebastian A1 - Proissl, Manuel A1 - Rebentrost, Patrick A1 - Sahin, Emre A1 - Symons, Benjamin C. B. A1 - Tornow, Sabine A1 - Valls, Víctor A1 - Woerner, Stefan A1 - Wolf-Bauwens, Mira L. A1 - Yard, Jon A1 - Yarkoni, Sheir A1 - Zechiel, Dirk A1 - Zhuk, Sergiy A1 - Zoufal, Christa T1 - Challenges and opportunities in quantum optimization JF - Nature Reviews Physics Y1 - 2024 U6 - https://doi.org/10.1038/s42254-024-00770-9 SN - 2522-5820 VL - 6 SP - 718 EP - 735 PB - Springer Science and Business Media LLC ER - TY - JOUR A1 - Kostré, Margarita A1 - Djurdjevac Conrad, Natasa A1 - Schütte, Christof A1 - Sunkara, Vikram T1 - Exploration of Particle Swarm Optimisation Algorithm with Divergent Parameters JF - Natural Computing Y1 - 2024 ER - TY - JOUR A1 - Siqueira Rodrigues, Lucas A1 - Schmidt, Timo Torsten A1 - Nyakatura, John A1 - Zachow, Stefan A1 - Israel, Johann Habakuk A1 - Kosch, Thomas T1 - Assessing the Effects of Sensory Modality Conditions on Object Retention across Virtual Reality and Projected Surface Display Environments JF - Proceedings of the ACM on Human-Computer Interaction N2 - Haptic feedback reportedly enhances human interaction with 3D data, particularly improving the retention of mental representations of digital objects in immersive settings. However, the effectiveness of visuohaptic integration in promoting object retention across different display environments remains underexplored. Our study extends previous research on the retention effects of haptics from virtual reality to a projected surface display to assess whether earlier findings generalize to 2D environments. Participants performed a delayed match-to-sample task incorporating visual, haptic, and visuohaptic sensory feedback within a projected surface display environment. We compared error rates and response times across these sensory modalities and display environments. Our results reveal that visuohaptic integration significantly enhances object retention on projected surfaces, benefiting task performance across display environments. Our findings suggest that haptics can improve object retention without requiring fully immersive setups, offering insights for the design of interactive systems that assist professionals who rely on precise mental representations of digital objects. Y1 - 2024 U6 - https://doi.org/10.1145/3698137 VL - 8 IS - ISS SP - 255 EP - 282 ER - TY - JOUR A1 - Fritsch, Daniel A1 - Schorr, Susan T1 - Disorder induced band gap lowering in kesterite type Cu2ZnSnSe4 and Ag2ZnSnSe4: a first-principles and special quasirandom structures investigation JF - Journal of Physics: Condensed Matter N2 - Abstract Quaternary chalcogenides, i.e. Cu2ZnSnS4, crystallising in the kesterite crystal structure have already been demonstrated as potential building blocks of thin film solar cells, containing only abundant elements and exhibiting power conversion efficiencies of about 14.9% so far. However, due to the potential presence of several structurally similar polymorphs, the unequivocal identification of their ground state crystal structures required the application of more elaborate neutron diffraction experiments. One particular complication arose from the later identified Cu–Zn disorder, present in virtually all thin film samples. Subsequently, it has been shown experimentally that this unavoidable Cu–Zn disorder leads to a band gap lowering in the respective samples. Additional theoretical investigations, mostly based on Monte-Carlo methods, tried to understand the atomistic origin of this disorder induced band gap lowering. Here, we present theoretical results from first-principles calculations based on density functional theory for the disorder induced band gap lowering in kesterite Cu2ZnSnSe4 and Ag2ZnSnSe4, where the Cu–Zn and Ag–Zn disorder is modelled via a supercell approach and special quasirandom structures. Results of subsequent analyses of structural, electronic, and optical properties are discussed with respect to available experimental results, and will provide additional insight and knowledge towards the atomistic origin of the observed disorder induced band gap lowering in kesterite type materials. Y1 - 2024 U6 - https://doi.org/10.1088/1361-648X/ad52de SN - 0953-8984 VL - 36 IS - 37 PB - IOP Publishing ER - TY - JOUR A1 - Eigen, Lennart A1 - Wölfer, Jan A1 - Baum, Daniel A1 - Van Le, Mai-Lee A1 - Werner, Daniel A1 - Dean, Mason N. A1 - Nyakatura, John A. T1 - Comparative architecture of the tessellated boxfish (Ostracioidea) carapace JF - Communications Biology Y1 - 2024 U6 - https://doi.org/10.1038/s42003-024-07119-z VL - 7 ER - TY - JOUR A1 - Yang, Binru A1 - Knötel, David A1 - Ciecierska-Holmes, Jana A1 - Wölfer, Jan A1 - Chaumel, Júlia A1 - Zaslansky, Paul A1 - Baum, Daniel A1 - Fratzl, Peter A1 - Dean, Mason N. T1 - Growth of a tessellation: geometric rules for the development of stingray skeletal patterns JF - Advanced Science Y1 - 2024 U6 - https://doi.org/10.1002/advs.202407641 VL - 11 IS - 48 ER - TY - JOUR A1 - Surapaneni, VA A1 - Flaum, B A1 - Schindler, M A1 - Hayat, K A1 - Wölfer, J A1 - Baum, D A1 - Hu, R A1 - Kong, TF A1 - Doube, M A1 - Dean, MN T1 - The helmeted hornbill casque is reinforced by a bundle of exceptionally thick, rod-like trabeculae JF - Annals of the New York Academy of Sciences Y1 - 2025 U6 - https://doi.org/10.1111/nyas.15254 VL - 1544 IS - 1 SP - 78 EP - 91 ER - TY - JOUR A1 - Schindler, M A1 - Flaum, B A1 - Surapaneni, VA A1 - Hayat, K A1 - Wölfer, J A1 - Baum, D A1 - Hu, R A1 - Kong, TF A1 - Doube, M A1 - Dean, MN T1 - Helmeted hornbill cranial kinesis: balancing mobility and stability in a high-impact joint JF - The Anatomical Record Y1 - 2025 U6 - https://doi.org/10.1002/ar.25613 ER - TY - JOUR A1 - Bortoletto, Enrico A1 - Lindner, Niels A1 - Masing, Berenike T1 - The Tropical and Zonotopal Geometry of Periodic Timetables JF - Discrete & Computational Geometry N2 - The Periodic Event Scheduling Problem (PESP) is the standard mathematical tool for optimizing periodic timetables in public transport. A solution to a PESP instance consists of three parts: a periodic timetable, a periodic tension, and integer offset values. While the space of periodic tensions has received much attention in the past, we explore geometric properties of the other two components. The general aim of this paper is to establish novel connections between periodic timetabling and discrete geometry. Firstly, we study the space of feasible periodic timetables as a disjoint union of polytropes. These are polytopes that are convex both classically and in the sense of tropical geometry. We then study this decomposition and use it to outline a new heuristic for PESP, based on neighbourhood relations of the polytropes. Secondly, we recognize that the space of fractional cycle offsets is in fact a zonotope, and then study its zonotopal tilings. These are related to the hyperrectangle of fractional periodic tensions, as well as the polytropes of the periodic timetable space, and we detail their interplay. To conclude, we also use this new understanding to give tight lower bounds on the minimum width of an integral cycle basis. Y1 - 2025 U6 - https://doi.org/10.1007/s00454-024-00686-2 VL - 73 SP - 719 EP - 763 ER - TY - JOUR A1 - Attree, Nicholas A1 - Gutiérrez, Pedro A1 - Groussin, Olivier A1 - Bürger, Johanna A1 - Keller, Horst Uwe A1 - Kramer, Tobias A1 - LASAGNI MANGHI, RICCARDO A1 - Läuter, Matthias A1 - Lemos, Pablo A1 - Markkanen, Johannes A1 - Marschall, Raphael A1 - Schuckart, Christian T1 - Varying water activity and momentum transfer on comet 67P/Churyumov-Gerasimenko from its non-gravitational forces and torques JF - Astronomy and Astrophysics N2 - Aims. We investigate the ability of a simultaneous fitting of comet 67P/Churyumov-Gerasimenko’s non-gravitational forces, torques, and total water-outgassing rate, as observed by Rosetta, to constrain complex thermophysical models of cometary material. Methods. We extend the previous work of fitting geographically defined surface outgassing models to the Rosetta observations by testing the effects of a more detailed geomorphological mapping, the resolution of the shape-model used, self-heating by neighbouring facets on the shape-model, thermal inertia in the outgassing solution, and the variation in the momentum coupling between the gas and the nucleus. We also directly compare the non-gravitational acceleration curves available in the literature. Results. We correct an error in the calculation of pole-orientation in the previous paper. We find that, under the assumptions of the model, non-gravitational forces and torques are driven by water sublimation from the nucleus, thermal inertia and self-heating have only minor effects, spatially uniform activity cannot explain 67P’s non-gravitational dynamics, spatially uniform momentum transfer cannot explain 67P’s non-gravitational dynamics, and different terrain types have different instantaneous responses to insolation. Conclusions. Consolidated terrain facing south on 67P/Churyumov-Gerasimenko has a high outgassing flux, a steep response to insolation, and a large gas momentum transfer coefficient. Instead, that facing north behaves differently, producing little to no water outgassing, and with a lower momentum transfer efficiency. Dusty terrain also has a lower outgassing rate and momentum transfer efficiency, and either depletes its volatile component or is buried in fall-back as the comet approaches the Sun. Momentum transfer appears correlated with insolation, likely due to an increased enhancement in the gas temperature as the dust it flows through is heated. Y1 - 2024 U6 - https://doi.org/10.1051/0004-6361/202450728 VL - 690 SP - A82 ER - TY - JOUR A1 - Witzke, Joel A1 - Lößer, Ansgar A1 - Bountris, Vasilis A1 - Schintke, Florian A1 - Scheuermann, Björn T1 - Low-level I/O Monitoring for Scientific Workflows JF - CoRR Y1 - 2024 U6 - https://doi.org/10.48550/ARXIV.2408.00411 VL - abs/2408.00411 SP - 1 EP - 10 ER - TY - JOUR A1 - Jäger, Klaus A1 - Tejada, Alvarjo A1 - Berwig, Sebastian A1 - Hammerschmidt, Martin A1 - Tockhorn, Philipp A1 - Albrecht, Steve A1 - Becker, Christiane T1 - Optical Simulations of Nanotextured All-Perovskite Tandem Solar Cells JF - Adv. Theory Simul. Y1 - 2025 U6 - https://doi.org/10.1002/adts.202400724 VL - 8 SP - 2400724 ER - TY - JOUR A1 - Roy, Sutapa A1 - Höfling, Felix T1 - Critical surface adsorption of confined binary liquids with locally conserved mass and composition JF - Molecular Physics N2 - Close to a solid surface, the properties of a fluid deviate significantly from their bulk values. In this context, we study the surface adsorption profiles of a symmetric binary liquid confined to a slit pore by means of molecular dynamics simulations; the latter naturally entails that mass and concentration are locally conserved. Near a bulk consolute point, where the liquid exhibits a demixing transition with the local concentration as the order parameter, we determine the order parameter profiles and characterise the relevant critical scaling behaviour, in the regime of strong surface attraction, for a range of pore widths and temperatures. The obtained order parameter profiles decay monotonically near the surfaces, also in the presence of a pronounced layering in the number density. Overall, our results agree qualitatively with recent theoretical predictions from a mesoscopic field-theoretical approach for the canonical ensemble. Y1 - 2024 U6 - https://doi.org/10.1080/00268976.2024.2391998 VL - 122 IS - 21-22 SP - e2391998 ER - TY - JOUR A1 - Fischbach, Jan David A1 - Betz, Fridtjof A1 - Asadova, Nigar A1 - Tassan, Pietro A1 - Urbonas, Darius A1 - Stöferle, Thilo A1 - Mahrt, Rainer F. A1 - Burger, Sven A1 - Rockstuhl, Carsten A1 - Binkowski, Felix A1 - Sturges, Thomas Jebb T1 - A framework to compute resonances arising from multiple scattering JF - Adv. Theory Simul. Y1 - 2025 U6 - https://doi.org/10.1002/adts.202400989 VL - 8 SP - 2400989 ER - TY - JOUR A1 - Bestuzheva, Ksenia A1 - Gleixner, Ambros A1 - Achterberg, Tobias T1 - Efficient separation of RLT cuts for implicit and explicit bilinear terms JF - Mathematical Programming Y1 - 2025 U6 - https://doi.org/10.1007/s10107-024-02104-0 VL - 210 SP - 47 EP - 74 ER - TY - JOUR A1 - Stengl, Steven-Marian A1 - Gelß, Patrick A1 - Klus, Stefan A1 - Pokutta, Sebastian T1 - Existence and uniqueness of solutions of the Koopman--von Neumann equation on bounded domains JF - Journal of Physics A: Mathematical and Theoretical Y1 - 2024 U6 - https://doi.org/10.1088/1751-8121/ad6f7d VL - 57 IS - 39 ER - TY - JOUR A1 - Böttcher, Julia A1 - Parczyk, Olaf A1 - Sgueglia, Amedeo A1 - Skokan, Jozef T1 - The square of a Hamilton cycle in randomly perturbed graphs JF - Random Structures & Algorithms Y1 - 2024 U6 - https://doi.org/10.1002/rsa.21215 VL - 65 IS - 2 SP - 342 EP - 386 ER - TY - JOUR A1 - Deza, Antoine A1 - Onn, Shmuel A1 - Pokutta, Sebastian A1 - Pournin, Lionel T1 - Kissing polytopes JF - SIAM Journal on Discrete Mathematics N2 - We investigate the following question: How close can two disjoint lattice polytopes contained in a fixed hypercube be? This question stems from various contexts where the minimal distance between such polytopes appears in complexity bounds of optimization algorithms. We provide nearly matching bounds on this distance and discuss its exact computation. We also give similar bounds for disjoint rational polytopes whose binary encoding length is prescribed. Y1 - 2024 U6 - https://doi.org/10.1137/24M1640859 VL - 38 IS - 4 ER - TY - JOUR A1 - Zimper, Sebastian A1 - Cornalba, Federico A1 - Djurdjevac Conrad, Natasa A1 - Djurdjevac, Ana T1 - On reduced inertial PDE models for Cucker-Smale flocking dynamics JF - Proceedings of the Royal Society A N2 - In particle systems, flocking refers to the phenomenon where particles’ individual velocities eventually align. The Cucker-Smale model is a well-known mathematical framework that describes this behaviour. Many continuous descriptions of the Cucker-Smale model use PDEs with both particle position and velocity as independent variables, thus providing a full description of the particles mean-field limit (MFL) dynamics. In this paper, we introduce a novel reduced inertial PDE model consisting of two equations that depend solely on particle position. In contrast to other reduced models, ours is not derived from the MFL, but directly includes the model reduction at the level of the empirical densities, thus allowing for a straightforward connection to the underlying particle dynamics. We present a thorough analytical investigation of our reduced model, showing that: firstly, our reduced PDE satisfies a natural and interpretable continuous definition of flocking; secondly, in specific cases, we can fully quantify the discrepancy between PDE solution and particle system. Our theoretical results are supported by numerical simulations. Y1 - 2025 U6 - https://doi.org/https://doi.org/10.1098/rspa.2024.0675 VL - 481 PB - Royal Society ER - TY - JOUR A1 - Weimann, Kuba A1 - Conrad, Tim T1 - FELRec: Efficient Handling of Item Cold-Start With Dynamic Representation Learning in Recommender Systems JF - International Journal of Data Science and Analytics Y1 - 2024 U6 - https://doi.org/10.1007/s41060-024-00635-5 IS - 2024 PB - Springer Nature ER -