Tootfinder

Graphics4Science: Computer Graphics for Scientific Impacts
Peter Yichen Chen, Minghao Guo, Hanspeter Pfister, Ming Lin, William Freeman, Qixing Huang, Han-Wei Shen, Wojciech Matusik
https://arxiv.org/abs/2506.15786

Graphics4Science: Computer Graphics for Scientific Impacts
Computer graphics, often associated with films, games, and visual effects, has long been a powerful tool for addressing scientific challenges--from its origins in 3D visualization for medical imaging to its role in modern computational modeling and simulation. This course explores the deep and evolving relationship between computer graphics and science, highlighting past achievements, ongoing contributions, and open questions that remain. We show how core methods, such as geometric reasoning an…

Ultra-low-resistivity nitrogen-doped p-type Cu2O thin films fabricated by reactive HiPIMS
Ji\v{r}\'i Rezek, Jan Koloros, Ji\v{r}\'i Hou\v{s}ka, Radom\'ir \v{C}erstv\'y, Stanislav Haviar, Jemal Yimer Damte, David Kolenat\'y, Pavel Baroch
https://arxiv.org/abs/2506.15275

Ultra-low-resistivity nitrogen-doped p-type Cu2O thin films fabricated by reactive HiPIMS
We have successfully fabricated the nitrogen-doped cuprous oxide thin films on the amorphous standard soda-lime glass by reactive high-power impulse magnetron sputtering. The energy of film-forming particles was controlled by the value of pulse-averaged target power density, which has a significant impact on the elemental composition, structure and optoelectrical properties of the films. We have shown that the high-energy regime is more suitable for preserving Cu2O structure and leads to contin…

Marcus Meyer schafft Tierskulpturen mit Holz von Bäumen, die auf Grund von Krankheit am Sterben oder bereits tot waren. Seine Tiere habe Verletzungen - die Formen sind unvollständig. Er zeigt #DieLetztenIhrerArt und macht auf das Sterben unserer Umwelt aufmerksam.
Schweinswale, kleine Tümmler sehen wir heute auch in Kieler Förde. Aber unsere Kinder und Kindeskinder?

Ich bin überzeugt, dass ein Teil des Problems, das wir mit der Anschlussfähigkeit von rechten Positionen bei Teilen der Bevölkerung haben, ist, dass progressivere Kräfte die Flanke für Framings weit offen lassen.
Das unter anderem, weil Begriffe wie "Patriotismus" dort aus guten Gründen verbrannt sind.
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Adiabatic nonabelian braiding of imperfect Majoranas
Maximilian Nitsch, Viktor Svensson, William Samuelson, Konstantin Nestmann, Jeroen Danon, Karsten Flensberg, Rub\'en Seoane Souto, Martin Leijnse
https://arxiv.org/abs/2507.11039

Adiabatic nonabelian braiding of imperfect Majoranas
Demonstration of a nontrivial result of quasiparticle exchange (or braiding) is usually considered the definitive proof of a topological phase with nonabelian excitations, such as Majorana bound states (MBSs). However, in finite systems with disorder and smooth potential variations, the MBSs are imperfect in the sense that they are not fully isolated in space and can, to a varying degree, resemble conventional fermions. Here, we study the braiding properties of isolated MBSs, regular fermions, …

Damping LFOs: Grid Following with Power Oscillation Damping vs. Grid Forming vs. PSS
Tamojit Chakraborty, Anamitra Pal, Sam Maleki
https://arxiv.org/abs/2505.24204

Damping LFOs: Grid Following with Power Oscillation Damping vs. Grid Forming vs. PSS
Low-frequency oscillations (LFOs) present a significant challenge to the stability and reliability of power systems, especially in grids with a high penetration of renewable energy sources. Traditional grid-following (GFL) inverters have proven less effective in damping such oscillations. This paper presents a GFL-power plant controller with an auxiliary power oscillation damping control for damping LFOs. This approach is compared with a traditional power system stabilizer (PSS) for a two-area …

An eco-friendly universal strategy via ribavirin to achieve highly efficient and stable perovskite solar cells
Xianhu Wu, Gaojie Xia, Guanglei Cui, Jieyu Bi, Nian Liu, Jiaxin Jiang, Jilong Sun, Luyang Liu, Ping Li, Ning Lu, Zewen Zuo, Min Gu
https://arxiv.org/abs/2507.10557

An eco-friendly universal strategy via ribavirin to achieve highly efficient and stable perovskite solar cells
The grain boundaries of perovskite films prepared by the solution method are highly disordered, with a large number of defects existing at the grain boundaries. These defect sites promote the decomposition of perovskite. Here, we use ribavirin obtained through bacillus subtilis fermentation to regulate the crystal growth of perovskite, inducing changes in the work function and energy level structure of perovskite, which significantly reduces the defect density. Based on density functional theor…

Moir\'e dependent Chern insulators in twisted crystalline flatbands
Wenxuan Wang, Yijie Wang, Zaizhe Zhang, Zihao Huo, Gengdong Zhou, Kenji Watanabe, Takashi Taniguchi, X. C. Xie, Kaihui Liu, Zhida Song, Xiaobo Lu
https://arxiv.org/abs/2507.10875

Moiré dependent Chern insulators in twisted crystalline flatbands
In moiré crystals, the competition between different isospin configurations can be tuned by twist angles and stacking orders, forming various symmetry-broken states. Here we report twisted double rhombohedral-trilayer-gaphene as a new twisted crystalline flatbands system showing rich moiré dependent topological phenomena. For small twist angles, programmable Chern insulators with Chern number C = 3 at integer moiré filling v = 1 have been observed. We have further revealed multiple first-ord…