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EU-Beitritt gehört für Selenskyj zu den Sicherheitsgarantien
Im Rahmen der Diskussion um Sicherheitsgarantien für die Ukraine hat Präsident Wolodymyr Selenskyj auf einen EU-Beitritt seines Landes gedrängt. "Unter den Sicherheitsgarantien, die wir sehen, ist eine Mitgliedschaft in der Europäischen Union eine zwingende ökonomische, politische und geopolitische Sicherheitsgarantie", sagte Selenskyj bei…
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"Koalition der Willigen" einigte sich auf Ukraine-Sicherheitsgarantien
Die westlichen Unterstützerländer der Ukraine haben sich auf Sicherheitsgarantien für das Land geeinigt. Laut Frankreichs Präsident Macron würden 26 Länder Truppen entsenden. Viele Details sind aber noch unklar.

Es tagt, der Sonne Morgenstrahl - dieses schöne Morgenlied habe ich erst kürzlich kennengelernt und gerade bei meinen frühmorgentlichen Stimmgabelspielen mal angestimmt. Es hilft finde ich ungemein (für das Gehör und mehr Vombattsingsicherheit), mal ohne Instrument den Anfangston von Liedern zu finden und vom Blatt zu singen.

Numerical evolution of self-gravitating halos of self-interacting dark matter
Marc Kamionkowski, Kris Sigurdson, Oren Slone
https://arxiv.org/abs/2506.04334

Numerical evolution of self-gravitating halos of self-interacting dark matter
We discuss a modification of a recently developed numerical scheme for evolving spherically symmetric self-gravitating systems to include the effects of self-interacting dark matter. The approach is far more efficient than traditional N-body simulations and cross sections with different dependencies on velocity and scattering-angle are easily accommodated. To demonstrate, we provide results of a simulation, which runs quickly on a personal computer, that shows the expected initial flattening of…

HeadZoom: Hands-Free Zooming and Panning for 2D Image Navigation Using Head Motion
Kaining Zhang, Catarina Moreira, Pedro Belchior, Gun Lee, Mark Billinghurst, Joaquim Jorge
https://arxiv.org/abs/2508.01765

HeadZoom: Hands-Free Zooming and Panning for 2D Image Navigation Using Head Motion
We introduce \textit{HeadZoom}, a hands-free interaction technique for navigating two-dimensional visual content using head movements. The system enables fluid zooming and panning by only using real-time head tracking. It supports natural control in applications such as map exploration, radiograph inspection, and image browsing, particularly where physical interaction is limited. We evaluated HeadZoom in a within-subjects user study comparing three interaction techniques-Static, Tilt Zoom, and …

Schon wieder wollen einige die Überwachung unserer Kommunikation per #Chatkontrolle einführen. Unklar,wie sich die Bundesregierung verhält. Folgt @… für mehr Infos!

FlashRecovery: Fast and Low-Cost Recovery from Failures for Large-Scale Training of LLMs
Haijun Zhang, Jinxiang Wang, Zhenhua Yu, Yanyong Zhang, Xuejie Ji, Kaining Mao, Jun Zhang, Yaqing Zhang, Ting Wu, Fei Jie, Xiemin Huang, Zhifang Cai, Junhua Cheng, Shuwei Wang, Wei Li, Xiaoming Bao, Hua Xu, Shixiong Zhao, Jun Li, Hongwei Sun, Ziyang Zhang, Yi Xiong, Chunsheng Li

FlashRecovery: Fast and Low-Cost Recovery from Failures for Large-Scale Training of LLMs
Large language models (LLMs) have made a profound impact across various fields due to their advanced capabilities. However, training these models at unprecedented scales requires extensive AI accelerator clusters and sophisticated parallelism strategies, which pose significant challenges in maintaining system reliability over prolonged training periods. A major concern is the substantial loss of training time caused by inevitable hardware and software failures. To address these challenges, we p…

Der Bundesrat plant, seine Kommunikation neu (auch) per App zu verbreiten. Reto hat sich auf #dnip ein paar Gedanken dazu gemacht. https://dnip.ch/2025/06/27/vogt-am-freitag-theres…

Unified description of cuprate superconductors by fractionalized electrons emerging from integrated analyses of photoemission spectra and quasiparticle interference
Shiro Sakai, Youhei Yamaji, Fumihiro Imoto, Tsuyoshi Tamegai, Adam Kaminski, Takeshi Kondo, Yuhki Kohsaka, Tetsuo Hanaguri, Masatoshi Imada
https://arxiv.org/abs/2508.01297

Unified description of cuprate superconductors by fractionalized electrons emerging from integrated analyses of photoemission spectra and quasiparticle interference
Electronic structure of high-temperature superconducting cuprates is studied by analyzing experimental data independently obtained from two complementary spectroscopies, one, quasiparticle interference (QPI) measured by scanning-tunneling microscopy and the other, angle-resolved photoemission spectroscopy (ARPES) and by combining these two sets of data in a unified theoretical analysis. Through explicit calculations of experimentally measurable quantities, we show that a simple two-component fe…

Can LLMs Lie? Investigation beyond Hallucination
Haoran Huan, Mihir Prabhudesai, Mengning Wu, Shantanu Jaiswal, Deepak Pathak
https://arxiv.org/abs/2509.03518 https://

Can LLMs Lie? Investigation beyond Hallucination
Large language models (LLMs) have demonstrated impressive capabilities across a variety of tasks, but their increasing autonomy in real-world applications raises concerns about their trustworthiness. While hallucinations-unintentional falsehoods-have been widely studied, the phenomenon of lying, where an LLM knowingly generates falsehoods to achieve an ulterior objective, remains underexplored. In this work, we systematically investigate the lying behavior of LLMs, differentiating it from hallu…

Tracing the Neutrino-Induced Phase Shift in the 21-cm Spectrum
Gabriele Montefalcone, Hector Afonso G. Cruz, Julian B. Munoz, Ely D. Kovetz, Marc Kamionkowski
https://arxiv.org/abs/2509.03595

Tracing the Neutrino-Induced Phase Shift in the 21-cm Spectrum
We study the phase shift that free-streaming neutrinos imprint on the 21-cm power spectrum during cosmic dawn, computing for the first time its effect on both density- and velocity-induced acoustic oscillations. Neutrinos are known to generate a characteristic phase shift in the acoustic oscillations of the photon-baryon plasma before recombination, a signature already detected in the cosmic microwave background (CMB) as well as the spectrum of baryon acoustic oscillations (BAOs) extracted from…