Rational Orbits and Gravitational-Wave Signatures around a Horndeski Black Hole

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:We study equatorial timelike geodesics and associated gravitational-wave (GW) emission for a static Horndeski black hole with secondary scalar hair, characterized by an effective pressure parameter $p_mathrmeff$. Using the rational-orbit taxonomy $(z,w,v)$, we analyze the innermost stable circular orbit (ISCO), marginally bound orbit (MBO), and periodic bound orbits. We find that […]


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FrontierPhysics: Evaluating Agents for End-to-End Physics Research

Posted by klaurent Berkeley

Kavli Affiliate: Gerbrand Ceder| Summary:AI agents are playing an increasingly important role in physics research. However, existing physics benchmarks only evaluate fixed questions, isolated sub-tasks, or paper reproduction with given solutions, and rarely check research quality alongside correctness. We introduce FrontierPhysics, an end-to-end benchmark with 56 tasks made by 42 physicists based on their own […]


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Time-invariant negativity and persistent bound entanglement in a cyclic two-qutrit family

Posted by klaurent Delft

Kavli Affiliate: Mazhar Ali | Summary: We study the entanglement dynamics of two qutrits under collective dephasing for a family of states obtained by mixing a maximally entangled state that lives in the decoherence-free subspace with three nonstationary two-term states sharing a common amplitude ratio $r$. We obtain exact PPT and separability regions along the […]


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Coexisting Kondo and Weyl-like transport in kagome heavy-fermion metal, Yb$_y$Co$_3$G$e_3-x$Sn$_x$

Posted by klaurent Delft

Kavli Affiliate: Mazhar Ali | Summary: Strong electron correlations and topology offer complementary routes to controlling electrical conduction, as correlations can make electrons heavy (e.g. Kondo lattices) whereas topology can make them behave as massless particles (e.g. Dirac or Weyl systems), and having both in one material is rare. In Kondo lattice systems, Kondo hybridization […]


Continue.. Coexisting Kondo and Weyl-like transport in kagome heavy-fermion metal, Yb$_y$Co$_3$G$e_3-x$Sn$_x$

Generalizable Equivariant Diffusion Models for Non-Abelian Lattice Gauge Theory: Analytical Foundations and Numerical Scaling Tests

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Gauge-equivariant diffusion models can be used to generate ensembles of field configurations in non-abelian lattice gauge theories. Previously, we demonstrated the feasibility of modeling these theories by combining L-CNN-based diffusion models with the Metropolis-adjusted annealed Langevin algorithm (MAALA). Here we focus on the underlying analytical framework. In particular, we present […]


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Membrane particle wrapping across methods and shapes

Posted by klaurent Delft

Kavli Affiliate: Timon Idema | Summary:Understanding the passive wrapping of adhesive particles by lipid membranes is a crucial step in untangling more complex endocytotic processes. However, despite the variety of computational approaches used to study passive endocytosis, a direct comparison of results across different modeling methods has never been performed. In this work, we present […]


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PointPilot: Unified Robotic Manipulation via Object-Centric 3D Point Flow Prediction

Posted by klaurent Caltech, This Week: Nanoscience

Kavli Affiliate: Wei Gao| Summary:Generalization remains a central challenge in robotics, calling for policies that address domain variations from multiple dimensions such as diverse embodiments, camera poses, and/or scene layouts. In order to approach this problem, we introduce PointPilot, a task-focused and 3D aligned manipulation framework built on a 3D space point-flow prediction. Rather than […]


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Imaging the Current Distribution in Superconducting Transition-Edge Sensors with Scanning SQUID Microscopy

Posted by klaurent Cornell, This Week: Nanoscience

Kavli Affiliate: Katja C. Nowack | Summary:Transition-edge sensors (TESs) exploit the resistive transition of a superconductor to detect minute changes in temperature. While significant progress has been made in understanding the temperature- and current-dependent resistive transition in these devices, important aspects of TES behavior under bias remain unresolved. In particular, existing TES models largely neglect […]


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All-to-All Connectivity in Superconducting Qubits via Metamaterial-Mediated Interactions

Posted by klaurent Caltech, This Week: Nanoscience

Kavli Affiliate: Oskar Painter | Summary:We show that encoding superconducting qubits as dual-rail or spin-locked transmons lets a metamaterial waveguide couple them all-to-all while suppressing the spurious entanglement that burdens shared-mode architectures, a step toward the non-local connectivity that quantum low-density parity-check codes require. In a bare-transmon architecture, the dispersive coupling between each populated mode […]


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Low Frequency Noise Identification for the SuperCDMS Experiment using Convolutional Neural Networks

Posted by klaurent Caltech, This Week: Nanoscience

Kavli Affiliate: Sunil Golwala | Summary:The SuperCDMS experiment uses semiconductor crystal detectors operated at cryogenic temperatures to search for low-mass dark matter. Vibrations observed during the SuperCDMS Soudan experiment generated broadband low-frequency noise (LFN), which due to its similarity in the pulse shape to the low-energy signal events is difficult to remove. In the final […]


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