Non-Thermal Physics Drives Compact, Self-Regulated Galaxy Morphologies at Cosmic Dawn

Posted by klaurent Stanford, This Week: Astrophysics

Kavli Affiliate: Risa Wechsler | Summary:James Webb Space Telescope (JWST) has discovered unexpectedly bright, rapidly growing galaxies in the early universe, which were not predicted by most previously existing galaxy formation models. Using synthetic JWST observations of the Azahar simulation suite, we show that comprehensive non-thermal physics ("Full-Physics") produces compact, self-regulated galaxies that match observations […]


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The first three-dimensional map of thermal phases in the local interstellar medium

Posted by klaurent Stanford, This Week: Astrophysics

Kavli Affiliate: Troy Porter | Summary:The thermal state of interstellar gas controls whether it remains warm and diffuse or cools into dense clouds. Twenty-one centimetre observations have established a statistical picture of neutral-gas phases, but their three-dimensional architecture has not previously been mapped. Here we present $mathcalP_rm 3D$, a three-dimensional reconstruction of thermal phase in […]


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Benchmarking trigonometric continuous-variable gate primitives with trapped ions

Posted by klaurent Stanford, This Week: Astrophysics

Kavli Affiliate: Susan Clark | Summary:Hybrid continuous-discrete-variable quantum processors can represent bosonic degrees of freedom directly in oscillator modes, or qumodes, while using qubits for control, readout, and nonlinear operations. Recently proposed trigonometric continuous-variable (CV) gate sets promote periodic functions of oscillator quadratures to elementary operations, making them natural primitives for compact variables, rotor models, […]


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Searching for heavy charged relics in the Earth

Posted by klaurent Stanford

Kavli Affiliate: Peter Graham | Summary:We propose a method for detecting an ambient density of heavy, electrically-charged particles. Such particles would impact the Earth, lose energy in terrestrial matter, and become trapped. We study the accumulation of these rare particles in multiple target materials that provide large exposure, such as water and geological rocks. We […]


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QSCOUT’s Qubit-Boson Gate Set

Posted by klaurent Stanford

Kavli Affiliate: Susan Clark | Summary:The Quantum Scientific Computing Open User Testbed (QSCOUT) has developed a qubit-boson gate set for hybrid continuous-discrete variable (CV-DV) quantum computing. This document outlines how to utilize these gates on QSCOUT using Just Another Quantum Assembly Language, JaqaltextsuperscriptTM. | Search Query: arXiv Query: search_query=au:”Clark Susan”&id_list=&start=0&max_results=10Read More


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Orthogonal Dendritic Intrinsic Networks: An Architecture for Significance-Ordered, Orthogonal Latent Spaces

Posted by klaurent Stanford

Kavli Affiliate: Zeeshan Ahmed | Summary:Principal Component Analysis or PCA-like properties (orthogonality, variance ranking) are seldom realized in deep autoencoder architectures. In this work, we present ODIN (Orthogonal Dendritic Intrinsic Network), a novel autoencoder architecture that recovers PCA-like latent structure in a fully non-linear regime. By incorporating a set of geometric constraints directly into the […]


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The “dark dips” phenomenon in the LSST Camera on-sky images

Posted by klaurent Stanford

Kavli Affiliate: Andrew Rasmussen | Summary:When the commissioning camera (ComCam), and then the LSST Camera, started taking on-sky images at the Vera Rubin Observatory, some of the ITL STA3800 CCDs exhibited a previously undocumented effect. When a sufficiently bright star is superimposed over the sky background, the sensor columns that contain the star appear slightly […]


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Rubin M1M3 Dynamic performance : stability and actuation during operations

Posted by klaurent Stanford

Kavli Affiliate: Kevin Reil | Summary:The Vera C. Rubin Observatory is preparing to commence the Legacy Survey of Space and Time with the fully integrated Simonyi Survey Telescope. To verify that the primary/tertiary (M1M3) mirror system is ready to meet the demanding survey requirements, dynamic tests of the 8.4 m, 53 ton M1M3 system were […]


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The filter exchange system of the LSSTCam at the Vera C. Rubin Observatory

Posted by klaurent Stanford

Kavli Affiliate: Stuart Marshall | Summary:The Filter Exchange System of the LSSTCam at the Vera C. Rubin Observatory is a critical subsystem enabling the Legacy Survey of Space and Time (LSST) by performing rapid, repeatable exchanges among five large-format filters within a highly constrained in-camera volume. Since the start of on-sky operations in April 2025, […]


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An overview of stray light findings and interpretation during on-sky commissioning of LSSTCam

Posted by klaurent Stanford

Kavli Affiliate: Aaron Roodman | Summary:Wide-field telescopes are intrinsically difficult to shield from unwanted stray and scattered light, while the search to identify sources of contaminating light is frequently a challenging task. The Vera C.~Rubin Observatory, which achieved its first photon with the LSST Camera (LSSTCam) on April 15, 2025, will initiate a revolutionary era […]


Continue.. An overview of stray light findings and interpretation during on-sky commissioning of LSSTCam