Tootfinder

Stress Testing Deliberative Alignment for Anti-Scheming Training
Bronson Schoen, Evgenia Nitishinskaya, Mikita Balesni, Axel H{\o}jmark, Felix Hofst\"atter, J\'er\'emy Scheurer, Alexander Meinke, Jason Wolfe, Teun van der Weij, Alex Lloyd, Nicholas Goldowsky-Dill, Angela Fan, Andrei Matveiakin, Rusheb Shah, Marcus Williams, Amelia Glaese, Boaz Barak, Wojciech Zaremba, Marius Hobbhahn

Stress Testing Deliberative Alignment for Anti-Scheming Training
Highly capable AI systems could secretly pursue misaligned goals -- what we call "scheming". Because a scheming AI would deliberately try to hide its misaligned goals and actions, measuring and mitigating scheming requires different strategies than are typically used in ML. We propose that assessing anti-scheming interventions requires at least (1) testing propensity to scheme on far out-of-distribution (OOD) tasks, (2) evaluating whether lack of scheming is driven by situational awareness, and…

Lensed stars in galaxy-galaxy strong lensing -- a JWST prediction for the Cosmic Horseshoe
Sung Kei Li, Luke Weisenbach, Thomas E. Collett, Jose M. Diego, Jeremy Lim, Thomas J. Broadhurst, Alex Chow, Wolfgang J. R. Enzi, Patrick L. Kelly, Carlos R. Melo-Carneiro, Jose M. Palencia, Liliya L. R. Williams, Jiashuo Zhang
https://arxiv.org/abs/…

Lensed stars in galaxy-galaxy strong lensing -- a JWST prediction for the Cosmic Horseshoe
We explore for the first time the possibility of detecting lensed star transients in galaxy-galaxy strong lensing systems upon repeated, deep imaging using the {\it James-Webb Space Telescope} ({\it JWST}). Our calculation predicts that the extremely high recent star formation rate of $\sim 100\,M_{\odot}\textrm{yr}^{-1}$ over the last 50 Myr (not accounting for image multiplicity) in the ``Cosmic Horseshoe'' lensed system ($z = 2.381$) generates many young, bright stars, of which their large a…

Knotting Minimal Sets
Alex Clark, John Hunton
https://arxiv.org/abs/2509.17133 https://arxiv.org/pdf/2509.17133

Knotting Minimal Sets
We consider the ways minimal sets of flows in $S^3$ may be embedded. We prove that given any $C^2$ flow on $S^3$ with positive entropy, there is an uncountable collection of topologically distinct minimal sets $\mathcal{M}$ such that for each $M\in \mathcal{M}$ there are infinitely many embedded copies of $M$ in the flow, each copy with a distinct knot type, thus extending work of Franks and Williams for periodic orbits.

Radio Emission from a Nearby M dwarf Binary
Kelvin Wandia, Michael A. Garrett, Robert J. Beswick, Jack F. Radcliffe, Vishal Gajjar, David Williams-Baldwin, Chenoa Tremblay, Iain McDonald, Alex Andersson, Andrew Siemion
https://arxiv.org/abs/2507.20681

Radio Emission from a Nearby M dwarf Binary
We present the detection of the binary system 2MASS J02132062+3648506 AB using the Karl G. Jansky Very Large Array (VLA) archive data observed at 4-8 GHz. The system is a triple consisting of a tight binary ($\sim0.2"$) of two M dwarfs of spectral class M4.5 and M6.5 and a wide T3 brown dwarf companion ($\sim$16.4"). The binary displays coronal and chromospheric activity as traced by previously measured X-ray flux and H$α$ emission. We detect the unresolved binary at a peak flux density of $\s…