A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane

Posted by klaurent Peking

Kavli Affiliate: Renxin Xu | Summary:Ultra-high-energy (UHE), exceeding 100 TeV (10^12 electronvolts), γ-rays manifests extreme particle acceleration in astrophysical sources. Recent observations by γ-ray telescopes, particularly by the Large High Altitude Air Shower Observatory (LHAASO), have revealed a few tens of UHE sources, indicating numerous Galactic sources capable of accelerating particles to PeV (10^15 electronvolts) […]


Continue.. A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane

A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane

Posted by klaurent Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Zhen Cao, Zhen Cao, , , | Summary: Ultra-high-energy (UHE), exceeding 100 TeV (10^12 electronvolts), gamma-rays manifests extreme particle acceleration in astrophysical sources. Recent observations by gamma-ray telescopes, particularly by the Large High Altitude Air Shower Observatory (LHAASO), have revealed a few tens of UHE sources, indicating […]


Continue.. A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane

Benchmarking AI-evolved cosmological structure formation

Posted by klaurent Chicago

Kavli Affiliate: Katrin Heitmann | Summary:The potential of deep learning-based image-to-image translations has recently attracted significant attention. One possible application of such a framework is as a fast, approximate alternative to cosmological simulations, which would be particularly useful in various contexts, including covariance studies, investigations of systematics, and cosmological parameter inference. To investigate different aspects […]


Continue.. Benchmarking AI-evolved cosmological structure formation

Real-Space Quantification of Exciton Localization in Acene Crystals Using Wannier Function Decomposition

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey Neaton | Summary:We introduce the Wannier function decomposition of excitons (WFDX) method to quantify exciton localization in solids within the ab initio Bethe-Salpeter equation framework. By decomposing each Bloch exciton wavefunction into products of single-particle electron and hole maximally localized Wannier functions, this real-space approach provides well-defined orbital- and spatial- resolved measures […]


Continue.. Real-Space Quantification of Exciton Localization in Acene Crystals Using Wannier Function Decomposition

Real-Space Quantification of Exciton Localization in Acene Crystals Using Wannier Function Decomposition

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Zui Tao, Zui Tao, , , | Summary: We introduce the Wannier function decomposition of excitons (WFDX) method to quantify exciton localization in solids within the ab initio Bethe-Salpeter equation framework. By decomposing each Bloch exciton wavefunction into products of single-particle electron and hole maximally localized […]


Continue.. Real-Space Quantification of Exciton Localization in Acene Crystals Using Wannier Function Decomposition

Study of few-electron backgrounds in the LUX-ZEPLIN detector

Posted by klaurent Stanford

Kavli Affiliate: T. A. Shutt| First 5 Authors: D. S. Akerib, D. S. Akerib, , , | Summary:The LUX-ZEPLIN (LZ) experiment aims to detect rare interactions between dark matter particles and xenon. Although the detector is designed to be the most sensitive to GeV/$c^2$–TeV/$c^2$ Weakly Interacting Massive Particles (WIMPs), it is also capable of measuring […]


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Phonon Hall Viscosity and the Intrinsic Thermal Hall Effect of $α$-RuCl$_3$

Posted by klaurent Cornell

Kavli Affiliate: Brad Ramshaw | Summary:The thermal Hall effect has been observed in a wide variety of magnetic insulators, yet its origins remains controversial. While some studies attribute the effect to intrinsic mechanism, such as heat carriers with Berry curvature, others propose extrinsic mechanisms, such as heat carriers scattering off crystal defects. Even the nature […]


Continue.. Phonon Hall Viscosity and the Intrinsic Thermal Hall Effect of $α$-RuCl$_3$

Phonon Hall Viscosity and the Intrinsic Thermal Hall Effect of $α$-RuCl$_3$

Posted by klaurent Cornell

Kavli Affiliate: Brad Ramshaw | Summary:The thermal Hall effect has been observed in a wide variety of magnetic insulators, yet its origin remains controversial. While some studies attribute it to intrinsic origins — such as heat carriers with Berry curvature — others propose extrinsic origins — such as heat carriers scattering off crystal defects. Even […]


Continue.. Phonon Hall Viscosity and the Intrinsic Thermal Hall Effect of $α$-RuCl$_3$

Comparing XRISM cluster velocity dispersions with predictions from cosmological simulations: are feedback models too ejective?

Posted by klaurent MIT

Kavli Affiliate: Richard Foster| First 5 Authors: XRISM Collaboration, XRISM Collaboration, , , | Summary:The dynamics of the intra-cluster medium (ICM), the hot plasma that fills galaxy clusters, are shaped by gravity-driven cluster mergers and feedback from supermassive black holes (SMBH) in the cluster cores. XRISM measurements of ICM velocities in several clusters offer insights […]


Continue.. Comparing XRISM cluster velocity dispersions with predictions from cosmological simulations: are feedback models too ejective?