Kavli Affiliate: Bruce Macintosh | First 5 Authors: Jayke S. Nguyen, Jayke S. Nguyen, , , | Summary: Mid-IR wavelengths are of particular interest to exoplanet science due to the fact they can extend the searchable parameter space to planets that are older and/or colder. However, a significant source of uncertainty at mid-IR wavelengths on […]
Kavli Affiliate: Bradford A. Benson | First 5 Authors: Isaac S. Magolego, Isaac S. Magolego, , , | Summary: Radio halos are diffuse synchrotron sources that trace the turbulent intracluster medium (ICM) of galaxy clusters. However, their origin remains unknown. Two main formation models have been proposed: the hadronic model, in which relativistic electrons are […]
Kavli Affiliate: Roger W. Romani | First 5 Authors: Jack T. Dinsmore, Jack T. Dinsmore, , , | Summary: As the Imaging X-ray Polarimetry Explorer (IXPE) measures increasingly faint sources, the need for precise polarimetry extraction becomes paramount. In addition to previously described neural-net (NN) weights, we introduce here point-spread function weights and particle background […]
Kavli Affiliate: Lijing Shao | First 5 Authors: Ziming Wang, Ziming Wang, , , | Summary: With the significantly improved sensitivity and a wider frequency band, the next-generation gravitational-wave (GW) detectors are anticipated to detect $sim 10^5$ GW signals per year with durations from hours to days, leading to inevitable signal overlaps in the data […]
Kavli Affiliate: Masahito Yamazaki | First 5 Authors: Masahito Yamazaki, Masahito Yamazaki, , , | Summary: While general quantum field theories (QFTs) have yet to be rigorously defined in mathematics, they have generated new mathematics and have served as a unifying principle connecting different branches of the subject. In 1989, Witten made a profound impact […]
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 […]