Kavli Affiliate: Jing Wang | First 5 Authors: Minghui Li, Minghui Li, , , | Summary: Direct Prompt Injection (DPI) attacks pose a critical security threat to Large Language Models (LLMs) due to their low barrier of execution and high potential damage. To address the impracticality of existing white-box/gray-box methods and the poor transferability of […]
Kavli Affiliate: Ke Wang | First 5 Authors: Anjiang Wei, Anjiang Wei, , , | Summary: GPU kernel optimization has long been a central challenge at the intersection of high-performance computing and machine learning. Efficient kernels are crucial for accelerating large language model (LLM) training and serving, yet attaining high performance typically requires extensive manual […]
Kavli Affiliate: Salvatore Vitale | First 5 Authors: Jack Heinzel, Jack Heinzel, , , | Summary: The coming years of gravitational wave astrophysics promises thousands of new detections, which can unlock fundamental scientific insights if the information in each observation can be properly synthesized into a coherent picture. State-of-the-art approaches often accomplish this with hierarchical […]
Kavli Affiliate: Lijing Shao | First 5 Authors: Zexin Hu, Zexin Hu, , , | Summary: The ringdown phase of the binary black hole (BBH) merger provides a clean and direct probe of strong-field gravity and tests of the nature of black holes. The quasinormal mode (QNM) frequencies in modified gravity theories, as well as […]
Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Adam E. Lanman, Adam E. Lanman, , , | Summary: Fast radio bursts (FRBs) provide a sensitive probe of diffuse baryons: their dispersion measures (DMs) measure electron density independent of temperature and scale linearly with gas density. This makes them particularly well suited to studying the […]
Kavli Affiliate: Wendy L. Freedman | First 5 Authors: M. M. Phillips, M. M. Phillips, , , | Summary: In this paper, the suitability of fast-declining Type Ia supernovae (SNe Ia) as cosmological standard candles is examined utilizing a Hubble Flow sample of 43 of these objects observed by the Carnegie Supernova Project (CSP). We […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Bartolomeo Trefoloni, Bartolomeo Trefoloni, , , | Summary: The James Webb Space Telescope (textitJWST) opened a new observational window on the primordial Universe. Here we present new JWST NIRSpec integral field spectroscopy (IFS) observations of the $z=7.54$ quasar ULAS J1342+0928 obtained as part of the Galaxy Assembly […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Swati Ravi, Swati Ravi, , , | Summary: Observations from the Imaging X-ray Polarimetry Explorer (IXPE) have revealed electric vector position angle (EVPA) rotation in several neutron star low-mass X-ray binaries, including the galactic X-ray burster GX 13+1. We developed a novel Bayesian nested sampling framework-"Q-U […]
Kavli Affiliate: Wayne Hu | First 5 Authors: Giulia Campailla, Giulia Campailla, , , | Summary: When a gravitational wave encounters a massive object along the line of sight, repeated copies of the original signal may be produced due to gravitational lensing. In this paper, we develop a series of new machine-learning based statistical methods […]
Kavli Affiliate: Bruce A. Macintosh | First 5 Authors: Nathalie K. Jones, Nathalie K. Jones, , , | Summary: We present confirmation of HD 143811 AB b, a substellar companion to spectroscopic binary HD 143811 AB through direct imaging with the Gemini Planet Imager (GPI) and Keck NIRC2. HD 143811 AB was observed as a […]