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๐Ÿ” sverre steen ๐Ÿ“‚ Physics
Showing 39455 results for "sverre steen" in Physics
Physics Preprint PDF DOI

On the polarization position angle jumps in FRB 20240114A

Ninisha Manaswini, Dante M. Hewitt, Laura G. Spitler, Jason W. T. Hessels, Ramesh Karuppusamy, Jeff Huang, Pranav Limaye, Lucas Guillemot, Ismael Cognard ยท 2026

Fast radio bursts (FRBs), thought to originate from magnetars, exhibit diverse polarization properties that constrain their emission physics and local magneto-ionic environments. The polarization posiโ€ฆ

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Physics Preprint PDF DOI

Heisenberg-limited Hamiltonian learning without short-time control

Myeongjin Shin, Junseo Lee, Changhun Oh ยท 2026

Characterizing quantum systems by learning their underlying Hamiltonians is a central task in quantum information science. While recent algorithmic advances have achieved near-optimal efficiency in thโ€ฆ

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Data-Efficient Indentation Size Effect Correction in Steels Using Machine Learning and Physics-Guided Augmentation

Radmir Karamov, Tagir Karamov ยท 2026

Shallow nanoindentation enables mechanical characterization of thin films, individual phases and other volume-constrained materials, but measured hardness is often inflated by the indentation size effโ€ฆ

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Physics Preprint PDF DOI

Electrothermal Dynamics of Cold Front in Impure Tokamak Plasmas

S. Oshiro, A. Matsuyama, Y. Nakamura ยท 2026

Current density perturbations induced by radiative collapse, which is a possible mechanism governing tokamak plasma disruptions, have been investigated using a reaction-diffusion model. The reaction tโ€ฆ

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Quantum Coordination without Conditioning under Restricted Information

Faisal Shah Khan ยท 2026

We study coordination under restricted information, where classical local models fail to implement certain correlated distributions because agents cannot condition on past history. We show that quantuโ€ฆ

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The major cluster merger in Abell 2034 as seen by XRISM: Strong turbulence and spectral anomalies?

Annie Heinrich, Irina Zhuravleva, Eugene Churazov, Congyao Zhang, Daniele Rogantini, Hannah McCall, Reinout J. van Weeren, William R. Forman ยท 2026

XRISM observations to date have shown that gas kinetic pressures in the intracluster medium (ICM) tend towards the low end of predictions from cosmological simulations. Here, we present a XRISM observโ€ฆ

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Dust cloud lifetimes of Scallop-shell stars

Simon Daley-Yates, Moira M. Jardine, Luke Bouma ยท 2026

We investigate the survival of dust trapped in magnetically confined cool gas clouds (or {\it prominences}) around rapidly rotating M-dwarfs exhibiting the ``scallop-shell'' light-curve morphology. Usโ€ฆ

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Contrasting Effects of Functionalization in Binary and Medium-Entropy MXene Coatings for Corrosion Protection

Aqsa Fayyaz, Ulises Martin Diaz, Jianyu Dai, Homero Castaneda, Chenglin Wu ยท 2026

Developing scalable and environmentally benign anticorrosion coatings is critical for protecting steel infrastructure in chloride-rich environments. Here, a nacre-inspired multilayer epoxy coating reiโ€ฆ

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Continuum contribution to charged-current absorption of low-energy $\nu_e$ on $^{40}$Ar

Steven Gardiner, Pablo Barham Alzas, Alexis Nikolakopoulos, Luca H. Abu El-Haj, Natalie Jachowicz, Vishvas Pandey ยท 2026

Accurate modeling of the absorption of tens-of-MeV $\nu_e$ on $^{40}$Ar is needed to enable measurements of astrophysical neutrinos using large liquid argon time projection chamber (LArTPC) detectors,โ€ฆ

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Torsion Induced Asymmetric Luttinger Liquids

Arseny Pantsialei, Nicholas Sedlmayr ยท 2026

We consider a general model of a Luttinger liquid with broken parity and time reversal symmetry, but with their composite symmetry intact. Such a scenario can be due to a combination of torsion and a โ€ฆ

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Normalizing flows for density estimation in multi-detector gravitational-wave searches

Sam Insley, Michael J. Williams, Rahul Dhurkunde, Ian Harry ยท 2026

Identifying compact binary coalescences buried within the non-Gaussian and non-stationary data taken by gravitational-wave interferometers requires sophisticated search pipelines, such as the PyCBC anโ€ฆ

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Cosmological evolution of fast radio bursts and its rapid decline relative to star formation rate

X. D. Jia, D. H. Gao, J. H. Chen, Q. Wu, S. X. Yi, F. Y. Wang (NJU) ยท 2026

Fast radio bursts (FRBs) are enigmatic millisecond-duration radio transients whose physical origins remain debated. To shed light on this, we analyze the CHIME/FRB Catalog 2. By using the probability โ€ฆ

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A cm-wave quantum noise limited resonant superconducting parametric amplifier

V. Gilles, T. Sweetnam, B. Mohammadian, M. A. McCulloch, L. Piccirillo ยท 2026

Superconducting Parametric Amplifiers (SPAs) have seen great interest in recent years due to their high gain and quantum limited noise performance. Among these amplifiers, resonant SPAs have been wideโ€ฆ

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A Systematic Search for Optical Outbursts in IPs Using ASAS-SN

Jake Mendelsohn, Simone Scaringi, Martina Veresvarska, Krystian I{l}kiewicz ยท 2026

Cataclysmic variables can show rapid increases in optical flux. Intermediate polars (IPs), a subset with strong magnetic fields that disrupt the inner accretion disc, have been thought to possess trunโ€ฆ

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Comparison of Silvaco and Synopsys TCAD Predictions Including the Perugia Radiation Damage Model in Silicon Pixel Detectors for the HL-LHC

M. Bomben, T. Croci, K. Aouadj, A. Fondacci, F. Moscatelli, A. Morozzi, D. Passeri ยท 2026

At the High Luminosity Large Hadron Collider (HL-LHC), silicon pixel detectors will be exposed to radiation fluences about 5 to 10 times larger than those experienced by the current innermost pixel laโ€ฆ

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Double-Peaked Ly$\alpha$ Emission during Reionization Requires Nearby Voids and a Favorable Local Ionizing Background

Hyunbae Park, Aaron Smith, Intae Jung, Hidenobu Yajima, Pierre Ocvirk, Joseph S. W. Lewis, Luke Conaboy, Paul R. Shapiro, Ilian T. Iliev, Kyungjin Ahn, Joohyun Lee, Jenny G. Sorce, Yohan Dubois ยท 2026

Several Lyman-alpha (Ly$\alpha$) emitters deep into the reionization era exhibit double-peaked Ly$\alpha$ emission profiles, raising the question of how the intergalactic medium can transmit photons bโ€ฆ

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Parker Solar Probe Observations of Compound Reconnection Exhaust Boundaries and Mirror-Mode Structures in the Near-Sun Heliospheric Current Sheet

Weijie Sun, Tai Phan, Jia Huang, Yi-Hsin Liu, James A. Slavin, Orlando Romeo, Mingzhe Liu, Vassilis Angelopoulos, Ali Rahmati, Davin Larson, Nehpreet Walia, Stuart Bale, Marc Pulupa, Jiutong Zhao, Roberto Livi ยท 2026

Magnetic reconnection is a fundamental physical process that can drive rapid conversion of magnetic energy into plasma bulk flows, thermal heating, and particle acceleration in space and astrophysicalโ€ฆ

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Blueberry and Green Pea galaxies live in low density environments

Maitrayee Gupta, Jiri Svoboda, Konstantinos Kouroumpatzakis, Nicolas Peschken, Peter G. Boorman, Abhijeet Borkar ยท 2026

Little is currently known about the large-scale environments of Green Pea (GP) and Blueberry (BB) galaxies, which are low-mass, compact systems with extreme specific star-formation rates (sSFR). Theirโ€ฆ

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FPGA-Accelerated Real-Time Diagnostics at DIII-D Using the SLAC Neural Network Library for ML Inference

Abhilasha Dave, Semin Joung, SangKyeun Kim, Ramon Reed, Keith Erickson, Jalal Butt, Azarakhsh Jalalvand, Mudit Mishra, James Russell, Larry Ruckman, Ryan Herbst, Egemen Kolemen, David Smith, Ryan Coffee ยท 2026

In this work, we demonstrate the deployment of a hardware-accelerated machine learning (ML) inference system integrated into a real-time processing at the DIII-D tokamak fusion reactor. The team has sโ€ฆ

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A Quantum Spectral Framework for Solving PDEs

Chih-Kang Huang, Giacomo Antonioli, Frederic Barbaresco ยท 2026

Partial differential equations (PDEs) are fundamental across numerous scientific fields. As these problems scale to high dimensions, classical numerical schemes introduce severe computational bottleneโ€ฆ

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