Tootfinder

Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
Rui Zhou, Igor Vinograd, Hadrien Mayffre, Juan Porras, Hun-Ho Kim, Toshinao Loew, Yiran Liu, Matthieu Le Tacon, Bernhard Keimer, Marc-Henri Julien
https://arxiv.org/abs/2506.00617

Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
Charge-density wave (CDW) order is a key property of high-Tc cuprates, but its boundaries in the phase diagram and potential connections to other phases remain controversial. We report nuclear magnetic resonance (NMR) measurements in the prototypical cuprate YBa2Cu3Oy demonstrating that short-range static CDW order remains robust at optimal doping (p=0.165), exhibiting a strength and temperature dependence in the normal state similar to those observed at p=0.11 in the underdoped regime. For an …

Corrupted by Reasoning: Reasoning Language Models Become Free-Riders in Public Goods Games
David Guzman Piedrahita, Yongjin Yang, Mrinmaya Sachan, Giorgia Ramponi, Bernhard Sch\"olkopf, Zhijing Jin
https://arxiv.org/abs/2506.23276

Corrupted by Reasoning: Reasoning Language Models Become Free-Riders in Public Goods Games
As large language models (LLMs) are increasingly deployed as autonomous agents, understanding their cooperation and social mechanisms is becoming increasingly important. In particular, how LLMs balance self-interest and collective well-being is a critical challenge for ensuring alignment, robustness, and safe deployment. In this paper, we examine the challenge of costly sanctioning in multi-agent LLM systems, where an agent must decide whether to invest its own resources to incentivize cooperat…

Ultra-high-gain water-window X-ray laser driven by plasma photocathode wakefield acceleration
Lily H. A. Berman, David Campbell, Edgar Hartmann, Thomas Heinemann, Thomas Wilson, Bernhard Hidding, Ahmad Fahim Habib
https://arxiv.org/abs/2507.06403

Ultra-high-gain water-window X-ray laser driven by plasma photocathode wakefield acceleration
X-ray free-electron lasers are large and complex machines, limited by electron beam brightness. Here we show through start-to-end simulations how to realise compact, robust and tunable X-ray lasers in the water window, based on ultra-bright electron beams from plasma wakefield accelerators. First, an ultra-low-emittance electron beam is released by a plasma photocathode in a metre-scale plasma wakefield accelerator. By tuning the beam charge, space-charge forces create a balance between beam fi…

Probing the semiconductor-to-dirac semimetal transition in Na-Sb-Bi alloys with x-ray Compton scattering
Aki Pulkkinen, Veenavee Nipunika Kothalawala, Kosuke Suzuki, Bernardo Barbiellini, Johannes Nokelainen, Wei-Chi Chiu, Bahadur Singh, Hsin Lin, Alok K. Pandey, Naoaki Yabuuchi, Naruki Tsuji, Yoshiharu Sakurai, Hiroshi Sakurai, J\'an Min\'ar, Arun Bansil

Probing the semiconductor-to-dirac semimetal transition in Na-Sb-Bi alloys with x-ray Compton scattering
We discuss electron redistribution during the Semiconductor-to-Dirac Semimetal transition in Na-Sb-Bi alloys using x-ray Compton scattering experiments combined with first-principles electronic structure modeling. A robust signature of the semiconductor-to-Dirac semimetal transition is identified in the spherically averaged Compton profile. We demonstrate how the number of electrons involved in this transition can be estimated to provide a novel descriptor for quantifying the strength of spin-o…

Photometric analysis of the intracluster light in the TNG300 simulation and wide-field observations
Daniel Montenegro-Taborda, Vicente Rodriguez-Gomez, Vladimir Avila-Reese, Bernardo Cervantes-Sodi, Matthias Kluge, Aditya Manuwal, Annalisa Pillepich, Lars Hernquist
https://arxiv.org/abs/2507.02105

Photometric analysis of the intracluster light in the TNG300 simulation and wide-field observations
We present a robust, apples-to-apples comparison between the photometric properties of the intracluster light (ICL) in the TNG300 magnetohydrodynamic cosmological simulation and those in Wendelstein Wide Field Imager (WWFI) observations. This is accomplished by generating synthetic $g'$-band images of 40 massive ($\log\left(M_{\rm 200, crit}/{\rm M}_{\odot}\right) > 14.5$) TNG300 clusters at $z \approx 0.06$, closely mimicking WWFI observations, and then performing identical photometric calcula…

Testing T2K's Bayesian constraints with priors in alternate parameterisations
Collaboration, Abe, Abe, Akutsu, Alarakia-Charles, Hakim, Monsalve, Anthony, Aoki, Apte, Arai, Arihara, Arimoto, Ashida, Atkin, Babu, Baranov, Barker, Barr, Barrow, Bates, Bathe-Peters, Batkiewicz-Kwasniak, Baudis, Berardi, Berns, Bhattacharjee, Blanchet, Blondel, Boistier, Bolognesi, Bordoni, Boyd, Bronner, Bubak, Avanzini, Caballero, Cadoux, Calabria, Cao, Cap, Carabadjac, Cartwright, Casado, Catanesi, …

Testing T2K's Bayesian constraints with priors in alternate parameterisations
Bayesian analysis results require a choice of prior distribution. In long-baseline neutrino oscillation physics, the usual parameterisation of the mixing matrix induces a prior that privileges certain neutrino mass and flavour state symmetries. Here we study the effect of privileging alternate symmetries on the results of the T2K experiment. We find that constraints on the level of CP violation (as given by the Jarlskog invariant) are robust under the choices of prior considered in the analysis…