Model Accuracy and Data Heterogeneity Shape Uncertainty Quantification in Machine Learning Interatomic Potentials

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Fei Shuang, Fei Shuang, , , | Summary: Machine learning interatomic potentials (MLIPs) enable accurate atomistic modelling, but reliable uncertainty quantification (UQ) remains elusive. In this study, we investigate two UQ strategies, ensemble learning and D-optimality, within the atomic cluster expansion framework. It is revealed that higher […]


Continue.. Model Accuracy and Data Heterogeneity Shape Uncertainty Quantification in Machine Learning Interatomic Potentials

Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Posted by klaurent MIT

Kavli Affiliate: Frank Wilczek | First 5 Authors: Sreenath K. Manikandan, Sreenath K. Manikandan, , , | Summary: We demonstrate that long-lived black hole quasi-normal modes become quantum mechanically squeezed due to nonlinear gravitational effects. We estimate the degree of squeezing for the fundamental mode of a Schwarzschild black hole quantitatively. | Search Query: ArXiv […]


Continue.. Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Detector Correlations and Null Tests of the Coherent State Hypothesis

Posted by klaurent MIT

Kavli Affiliate: Frank Wilczek | First 5 Authors: Sreenath K. Manikandan, Sreenath K. Manikandan, , , | Summary: We discuss the statistics of correlations between two resonant detectors. We show that this allows simple null tests of the coherent state hypothesis, free of vacuum (quantum) noise. Complementary aspects of the radiation field, {it e.g.}, squeezing […]


Continue.. Detector Correlations and Null Tests of the Coherent State Hypothesis

Robust Single-Stage Fully Sparse 3D Object Detection via Detachable Latent Diffusion

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Wentao Qu, Wentao Qu, , , | Summary: Denoising Diffusion Probabilistic Models (DDPMs) have shown success in robust 3D object detection tasks. Existing methods often rely on the score matching from 3D boxes or pre-trained diffusion priors. However, they typically require multi-step iterations in inference, which limits […]


Continue.. Robust Single-Stage Fully Sparse 3D Object Detection via Detachable Latent Diffusion

High-resolution magnetic imaging by mapping the locally induced anomalous Nernst effect using atomic force microscopy

Posted by klaurent UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: , , , , | Summary: We report a magnetic imaging method using atomic force microscopy to measure the locally induced anomalous Nernst effect. The tip contact creates a local temperature gradient on the sample surface controlled by a neighboring Joule heating wire. We demonstrate the imaging […]


Continue.. High-resolution magnetic imaging by mapping the locally induced anomalous Nernst effect using atomic force microscopy

Memoirs of mass accretion: probing the edges of intracluster light in simulated galaxy clusters

Posted by klaurent Stanford

Kavli Affiliate: Risa Wechsler | First 5 Authors: Tara Dacunha, Tara Dacunha, , , | Summary: The diffuse starlight extending throughout massive galaxy clusters, known as intracluster light (ICL), has the potential to be read as a memoir of mass accretion: informative, individual, and yet imperfect. Here, we combine dark matter-only zoom-in simulations from the […]


Continue.. Memoirs of mass accretion: probing the edges of intracluster light in simulated galaxy clusters

Validation of TESS Planet Candidates with Multi-Color Transit Photometry and TRICERATOPS+

Posted by klaurent MIT

Kavli Affiliate: Avi Shporer | First 5 Authors: Jonathan Gomez Barrientos, Jonathan Gomez Barrientos, , , | Summary: We present an upgraded version of TRICERATOPS, a software package designed to calculate false positive probabilities for planet candidates identified by the Transiting Exoplanet Survey Satellite (TESS). This enhanced framework now incorporates ground-based light curves in separate […]


Continue.. Validation of TESS Planet Candidates with Multi-Color Transit Photometry and TRICERATOPS+

Simulating high-temperature superconductivity in moiré WSe2

Posted by klaurent Cornell

Kavli Affiliate: Jie Shan | First 5 Authors: Yiyu Xia, Yiyu Xia, , , | Summary: The emergence of high transition temperature (Tc) superconductivity in strongly correlated materials remains a major unsolved problem in physics. High-Tc materials, such as cuprates, are generally complex and not easily tunable, making theoretical modelling difficult. Although the Hubbard model–a […]


Continue.. Simulating high-temperature superconductivity in moiré WSe2

FastCSP: Accelerated Molecular Crystal Structure Prediction with Universal Model for Atoms

Posted by klaurent Caltech

Kavli Affiliate: Chiara Daraio | First 5 Authors: Vahe Gharakhanyan, Vahe Gharakhanyan, , , | Summary: Crystal Structure Prediction (CSP) of molecular crystals plays a central role in applications, such as pharmaceuticals and organic electronics. CSP is challenging and computationally expensive due to the need to explore a large search space with sufficient accuracy to […]


Continue.. FastCSP: Accelerated Molecular Crystal Structure Prediction with Universal Model for Atoms

Particle Detection Using Magnetic Avalanches in Single-Molecule Magnet Crystals

Posted by klaurent Tokyo

Kavli Affiliate: Tom Melia | First 5 Authors: Bailey Kohn, Bailey Kohn, , , | Summary: The detection of a single quantum of energy with high efficiency and a low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the direct detection of […]


Continue.. Particle Detection Using Magnetic Avalanches in Single-Molecule Magnet Crystals