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329 papers · 1 filter

cs.SE2025

Uncovering Discrimination Clusters: Quantifying and Explaining Systematic Fairness Violations

Ranit Debnath Akash, Ashish Kumar, Verya Monjezi +4

Fairness in algorithmic decision-making is often framed in terms of individual fairness, which requires that similar individuals receive similar outcomes. A system violates individ…

quant-ph2025

Quantum State Preparation with Resolution Refinement

Scott Bogner, Heiko Hergert, Morten Hjorth-Jensen +3

We introduce a method called resolution refinement that allows one to bootstrap eigenstate preparation on a quantum computer. We first prepare an eigenstate of a low-resolution Ham…

physics.optics2025

Dynamic Imaging of Periodic Structures using Extreme Ultraviolet Scatterometry

Brendan McBennett, Michael Tanksalvala, Emma E. Nelson +10

Dynamic scattering and imaging with coherent, ultrafast, extreme ultraviolet (EUV) light sources can resolve charge, phonon and spin processes on their intrinsic length and time sc…

astro-ph.SR2025

Citizen CATE 2024: Extending Totality During the 8 April 2024 Total Solar Eclipse with a Distributed Network of Community Participants

Sarah A. Kovac, Amir Caspi, Daniel B. Seaton +240

The Citizen CATE 2024 next-generation experiment placed 43 identical telescope and camera setups along the path of totality during the total solar eclipse (TSE) on 8 April 2024 to…

physics.optics2025

Hybrid electrostatic-piezo MEMS photonic integrated modulators

Thuy-Linh Le, Hardit Singh, Julia M. Boyle +5

Programmable photonic integrated circuits (PICs) have recently emerged as an important technology for quantum information science and artificial neural networks. In particular, PIC…

quant-ph2025★ 10 cited

Coherence-limited digital control of a superconducting qubit using a Josephson pulse generator at 3 K

M. A. Castellanos-Beltran, A. J. Sirois, L. Howe +4

Compared to traditional semiconductor control electronics (TSCE) located at room temperature, cryogenic single flux quantum (SFQ) electronics can provide qubit measurement and cont…

astro-ph.EP2025★ 2 cited

Separating flare and secondary atmospheric signals with RADYN modeling of near-infrared JWST transmission spectroscopy observations of TRAPPIST-1

Ward S. Howard, Adam F. Kowalski, Michael Radica +10

Although TRAPPIST-1's temperate planets have the highest transmission signals of any known system, flares contaminate 50-70% of transits at the 1000 ppm level, far above 100 ppm se…

astro-ph.GA2025

A Convolutional Neural Network for the Recovery of Transfer Functions From Velocity-Resolved Reverberation Mapping Data

Kirk Long, Keith Horne, Jason Dexter +1

One of the hallmarks of active galactic nuclei are that they are highly variable with time. In watching the spectra vary it has been observed that the emission-lines often appear t…

physics.space-ph2025

An Enhanced "Flux-Corrected Transport"-Based Plasmasphere Refilling Model

Jaden Fitzpatrick, Kausik Chatterjee, Naomi Maruyama

A previously developed multi-ion, two-stream Flux-Corrected Transport (FCT) hydrodynamic model for plasmasphere refilling has been extended to incorporate self-consistent electron…

hep-ex2025★ 1 cited

Characterization of the quantum state of top quark pairs produced in proton-proton collisions at = 13 TeV using the beam and helicity bases

CMS Collaboration

Measurements of the spin correlation coefficients in the beam basis are presented for top quark-antiquark () systems produced in proton-proton collisions at $\sq…

cs.RO2025

ShelfAware: Real-Time Semantic Localization in Quasi-Static Environments with Low-Cost Sensors

Shivendra Agrawal, Jake Brawer, Ashutosh Naik +2

Many indoor workspaces are quasi-static: their global geometric layout is stable, but local semantics change continually, producing repetitive geometry, dynamic clutter, and percep…

quant-ph2025

Hybrid qubit-oscillator module from motional states of two interacting atoms

Jaeyong Hwang, Tianrui Xu, Sean R. Muleady +5

We propose a qubit-oscillator platform based on the motional states of two interacting atoms in an optical tweezer. By stroboscopically modulating an engineered trap with tunable a…

physics.atom-ph2025

Doppler Shift Mitigation in a Chip-Scale Atomic Beam Clock

Alexander Staron, Gabriela Martinez, Nicholas Nardelli +3

Chip-scale microwave atomic systems based on thermal atomic beams offer a promising approach to realize low-power and low-drift clocks for timing holdover applications. Miniature b…

hep-ex2025

Measurements of electroweak production of a photon in association with two jets in proton-proton collisions at = 13 TeV

CMS Collaboration

The first observation of electroweak production of a photon in association with two forward jets in proton-proton collisions is presented. The measurement uses data recorded by the…

astro-ph.SR2025★ 1 cited

Young M dwarfs flare activity model: Towards better exoplanetary atmospheric characterisation

E. Mamonova, A. F. Kowalski, K. Herbst +2

Context. Stellar flares can significantly influence the atmospheres and habitability of orbiting exoplanets, especially around young and active M dwarfs. Understanding the temporal…

physics.optics2025

Ultralow noise microwaves with free-running frequency combs and electrical feedforward

Takuma Nakamura, William Groman, Qing-Xin Ji +11

Optically generated microwave signals exhibit some of the lowest phase noise and timing jitter of any microwave-generating technology to date. The success of octave-spanning optica…

physics.app-ph2025

Active compensation of the AC Stark shift in a two-photon rubidium optical frequency reference using power modulation

Yorick Andeweg, John Kitching, Matthew T. Hummon

We implement a feedback protocol to suppress the AC Stark shift in a two-photon rubidium optical frequency reference, reducing its sensitivity to optical power variations by a fact…

astro-ph.SR2025★ 2 cited

Multi-height probing of horizontal flows in the solar photosphere

Teodor Kostić, Ivan Milić, Matthias Rempel +4

We tested whether simultaneous spectropolarimetric imaging in two magnetically sensitive optical spectral lines, which probe two different layers of the solar atmosphere (the photo…

physics.atom-ph2025

Prospects for a Solid-State Nuclear Clock

Steven M. Girvin, Leo Radzihovsky

Motivated by recent experimental breakthroughs toward a realization of a solid-state Thorium-229 nuclear clock, we review the technology, basic physics motivation, and limitations…

cond-mat.mtrl-sci2025★ 1 cited

Revealing the Hidden Third Dimension of Point Defects in Two-Dimensional MXenes

Grace Guinan, Michelle A. Smeaton, Brian C. Wyatt +6

Point defects govern many important functional properties of two-dimensional (2D) materials. However, resolving the three-dimensional (3D) arrangement of these defects in multi-lay…

astro-ph.EP2025★ 2 cited

Magnetohydrodynamic simulation assessment of a potential near-ultraviolet early ingress in WASP-189b

Y. Duann, S. -H. Lai, H. J. Hoeijmakers +8

Ultra-hot Jupiters (UHJs) in close orbits around early-type stars provide natural laboratories for studying atmospheric escape and star-planet interactions under extreme irradiatio…

astro-ph.EP2025★ 2 cited

Early evidence for isotropic planetary obliquities in young super-Jupiter systems

Michael Poon, Marta L. Bryan, Hanno Rein +3

This decade has seen the first measurements of extrasolar planetary obliquities, characterizing how an exoplanet's spin axis is oriented relative to its orbital axis. These measure…

astro-ph.IM2025

Development of Silicon Micromachined Waveguide Filter-Banks for On-Chip Spectrometers

Matthew A. Koc, Jason Austermann, James Beall +4

Development of high-speed, spatial-mapping spectrometers in the millimeter and far-infrared frequencies would enable entirely new research avenues in astronomy and cosmology. An "o…

cond-mat.soft2025

From Knots to Crystals: Machine-Learned Potentials for Self-Assembling Topological Solitons in Liquid Crystals

Arunkumar Bupathy, Darian Hall, Ivan I. Smalyukh +3

Knotted fields in classical and quantum systems have long been recognized for their non-trivial topologies and particle-like behavior, but practical applications have been limited…