Kavli Affiliate: J. C. Seamus Davis | First 5 Authors: Hiroto Takahashi, Hiroto Takahashi, , , | Summary: The kagome lattice of spin-1/2 Cu atoms in herbertsmithite (ZnCu3(OH)6Cl2) may sustain a quantum spin liquid (QSL) state with spinon quasiparticles. Each kagome plane is separated from its homologues by a layer of spinless Zn atoms. Providentially, […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Francesco D’Eugenio, Francesco D’Eugenio, , , | Summary: We present JWST/NIRSpec dense-shutter spectroscopy (DSS). This novel observing strategy with the NIRSpec micro-shutter assembly (MSA) deliberately permits a high number of controlled spectral overlaps to reach extreme multiplex while retaining the low background of slit spectroscopy. In a […]
Kavli Affiliate: Joel E. Moore | First 5 Authors: Yi J. Zhao, Yi J. Zhao, , , | Summary: Synchronization in quantum systems has been recently studied through persistent oscillations of local observables, which stem from undamped modes of the dissipative dynamics. However, the existence of such modes requires fine-tuning the system to satisfy specific […]
Kavli Affiliate: Long Zhang | First 5 Authors: Ying Chen, Ying Chen, , , | Summary: The $S=1/2$ antiferromagnetic Heisenberg chain is a paradigmatic quantum system hosting exotic excitations such as spinons and solitons, and forming random singlet state in the presence of quenched disorder. Realizing and distinguishing these excitations in a single material remains […]
Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Maja Lujan Niemeyer, Maja Lujan Niemeyer, , , | Summary: We present a measurement of the Lyman-$alpha$ (Ly$alpha$) intensity mapping power spectrum from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). We measure the cross-power spectrum of the Ly$alpha$ intensity and Ly$alpha$-emitting galaxies (LAEs) in a redshift range […]
Kavli Affiliate: Michael A. McDonald | First 5 Authors: Nixon Hanna, Nixon Hanna, , , | Summary: For any elliptical potential with an external parallel shear, Witt has proven that the gravitational center lies on a rectangular hyperbola derived from the image positions of a single quadruply lensed object. Moreover, it is predicted that for […]
Kavli Affiliate: Wei Gao | First 5 Authors: Han Lu, Han Lu, , , | Summary: Synchronous Reinforcement Learning (RL) post-training has emerged as a crucial step for enhancing Large Language Models (LLMs) with diverse capabilities. However, many systems designed to accelerate RL post-training still suffer from low resource utilization and limited scalability. We present […]
Kavli Affiliate: Zhuo Li | First 5 Authors: Zhuo Li, Zhuo Li, , , | Summary: The reward model (RM) plays a crucial role in aligning Large Language Models (LLMs) with human preferences through Reinforcement Learning, where the Bradley-Terry (BT) objective has been recognized as simple yet powerful, specifically for pairwise preference learning. However, BT-based […]
Kavli Affiliate: Debdeep Jena | First 5 Authors: Alice Ho, Alice Ho, , , | Summary: The importance of electrical contact resistance and thermal boundary resistance has increased dramatically as devices are scaled to atomic limits. The use of a rich range of materials with various bandstructures (e.g. parabolic, conical), and in geometries exploiting various […]
Kavli Affiliate: Pau Amaro Seoane | First 5 Authors: Fupeng Zhang, Fupeng Zhang, , , | Summary: We explore extreme mass-ratio inspirals (EMRIs) in the co-evolution of massive black holes (MBHs) and nuclear star clusters (NSCs), which host diverse stellar populations across a wide range of masses. The dynamics are simulated self-consistently with GNC, which […]