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Showing 135435 results for "program evaluation" in Physics
Physics Preprint PDF DOI

Microstructure engineering of Ti-6Al-4V in laser powder bed fusion via 1D thermal modeling and supporting experiments

Carina van der Linde, Iason Sideris, Lea Deillon, Mohamadreza Afrasiabi, Markus Bambach ยท 2026

The microstructure of Ti-6Al-4V has a decisive impact on its mechanical performance; however, controlling phase composition during Laser Powder Bed Fusion (LPBF) remains difficult because of the inherโ€ฆ

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Physics Preprint PDF DOI

Measurement of the Weyl Potential Evolution and $E_G$ Statistic from KiDS-1000, BOSS and 2dFLenS

Xuwei Zhang, Ming Zhang, Yunliang Ren, Xiaofeng Yang ยท 2026

A recently developed model-independent approach to measuring the Weyl potential has shown some tensions with $\Lambda$CDM (Lambda Cold Dark Matter) in DES (Dark Energy Survey) Y3 data. We apply this fโ€ฆ

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Physics Preprint PDF DOI

Nonparametric Variational Inference Reconstruction of the Cosmic Expansion History from SNe Ia -- the charm2 code

Iason Saganas, Matteo Guardiani, Natalia Porqueres, Torsten En{ss}lin ยท 2026

Cosmological analyses using the latest set of type Ia SNe data weakly favor an evolving dark energy (EDE) model without strongly disfavoring the standard LCDM paradigm. Nonparametric reconstructions oโ€ฆ

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Physics Preprint PDF DOI

On the Two $R$-Factors in the Small-$x$ Shockwave Formalism

Yuri V. Kovchegov, M. Gabriel Santiago, Huachen Sun ยท 2026

There are two $R$-factors frequently used in the phenomenology of exclusive processes at small values of the Bjorken $x$ variable. One $R$-factor takes into account the effects of non-zero longitudinaโ€ฆ

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Physics Preprint PDF DOI

An axion framework for Particle-in-Cell codes with Monte-Carlo sampling: emission, absorption, and detailed balance in plasmas

Miles Radford, Ahmed Alsulami, Bertrand Martinez, Pablo Bilbao, Thomas Grismayer, Luis O. Silva, Robert Bingham, Gianluca Gregori ยท 2026

We present an extension of the OSIRIS particle-in-cell (PIC) code that introduces an axion macroparticle species and three axion-production channels commonly used in thermal-plasma axion phenomenologyโ€ฆ

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Physics Preprint PDF DOI

Step- and terrace-resolved crystal truncation rod scattering from vicinal surfaces under coherent heteroepitaxy

Junlin Wu, Erqi Xu, Qihui Lin, Jiaqing Yue, Jiale Wang, Zihao Xu, Guangxu Ju ยท 2026

We develop a general theory of crystal truncation rod (CTR) scattering from vicinal surfaces with a coherently strained heteroepitaxial film. The formalism incorporates film-induced interference fringโ€ฆ

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Physics Preprint PDF DOI

A Theoretical Study of the Structure and Elemental Abundances of HD 20794

Mrinmay Medhi, Mami Deka, Krishna Saha, Vivek Baruah Thapa, Upakul Mahanta ยท 2026

HD~20794 is a nearby, bright, metal-poor G-type dwarf hosting a compact planetary system, including a super-Earth near the habitable zone. Its low stellar activity and the availability of precise radiโ€ฆ

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Physics Preprint PDF DOI

Mass spectra of charged mesons and the quenching of vector meson condensation via exact phase-space diagonalization

Jingyi Chao, Kun Xu ยท 2026

We investigate the dynamics and mass spectra of charged pseudoscalar ($\pi^+$) and vector ($\rho^+$) mesons in a background magnetic field at finite temperature using the two-flavor Nambu-Jona--Lasiniโ€ฆ

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Physics Preprint PDF DOI

Electronic and optical properties of arsenic monolayers: from planar honeycomb to the puckered phase

Niloufar Dadkhah, Walter R. L. Lambrecht ยท 2026

Group-V monolayer materials exhibit intriguing electronic and optical properties, influenced by their unique crystal symmetries and structural phases. In this work, we study arsenic monolayers, investโ€ฆ

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A Spectral Gap Informed Parameter Schedule for QAOA

Kieran McDowall, Konstantinos Georgopoulos, Petros Wallden ยท 2026

A challenge with the Quantum Approximate Optimisation Algorithm (QAOA), and variational algorithms in general, is finding good variational parameters, a task which in itself can be NP-hard. Recent worโ€ฆ

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A Measure-Theoretic Transport Formulation of Galaxy Evolution on the Galaxy Manifold: Geometric Constraints

Tsutomu T. Takeuchi ยท 2026

We develop a measure-theoretic framework for galaxy evolution in which galaxy populations are described as probability measures on a state space. Galaxy evolution is represented as the time evolution โ€ฆ

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Tests of scalar polarizations with multi-messenger events

Sk Md Adil Imam, Macarena Lagos ยท 2026

Gravitational wave (GW) observations provide a unique opportunity to test Einstein's General Relativity (GR) in the strong-field regime. While GR predicts only two tensor polarization modes, generic mโ€ฆ

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StarCLR: Contrastive Learning Representation for Astronomical Light Curves

Junyao Ding, Xiaodian Chen, Xinyi Gao, Xiaoyu Tang, Shu Wang, Yang Huang, Xinyu Qi, Guirong Xue, Ali Luo, Jifeng Liu ยท 2026

With the rapid development of time-domain surveys, the availability of massive light curve data offers new opportunities for studying stellar evolution and variable star classification, while simultanโ€ฆ

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Physics Preprint PDF DOI

Machine learning technique for morphological classification of galaxies from SDSS. IV. Visual inspection vs CNN for merging, irregular, edge-on, barred, ringed, and with dust lanes galaxies at 0.02<z<0.1

Dobrycheva D.V., Vavilova I.B., Kompaniiets O.V., Khramtsov V., Vasylenko M.Yu., Hetmantsev O.O., Melnyk O.V., Karachentseva V.E ยท 2026

Context. Convolutional neural networks (CNNs) are widely used for automated galaxy morphological classification in large surveys. However, projection effects, image artefacts, and intrinsic degeneraciโ€ฆ

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Physics Preprint PDF DOI

CSST Preparations: Galaxy Completeness and S\'ersic Profile Fitting across the Wide, Deep, and Extreme Fields

Ziqi Ma, Si-Yue Yu, Taotao Fang, Jinyi Shangguan, Zhao-Yu Li, Luis C. Ho ยท 2026

The upcoming imaging survey of the Chinese Space-station Survey Telescope (CSST) will deliver high-resolution imaging of an unprecedented number of galaxies for galaxy studies. To understand CSST's caโ€ฆ

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Gravitational waves of extreme-mass-ratio inspirals in a rotating black hole with Dehnen dark matter halo

Kun Meng, Shao-Jun Zhang, Nan Yang ยท 2026

Extreme Mass Ratio Inspirals (EMRIs) are among the key targe sources for the space-based gravitational wave (GW) detectors. The waveforms of the EMRIs are highly sensitive to the types of the central โ€ฆ

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Physics Preprint PDF DOI

Impact of thermal and dissipative effects in a periodically-kicked quantum battery

Sebastian V. Romero, Xi Chen, Yue Ban ยท 2026

Quantum batteries (QBs) have emerged as a promising route for fast energy storage and on-chip power supply in quantum devices. Given the limited analytical understanding of open Floquet QBs, we employโ€ฆ

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A practicable method for the analysis of complex motion of biological and soft matter

Jun Ma ยท 2026

Biological function of living matter is fulfilled by complex motions of biological and soft matter. Unlike general motion is deterministic described by Newton's laws, these motions are mostly random aโ€ฆ

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Fates of the sub-stellar objects (FOSSO) II. Evidence for Suppression of Metal Pollution in White Dwarfs by Close Substellar Companions

Zhangliang Chen, Xin-Yue Zhang, Di-Chang Chen, Kejun Wang, Bo Ma, Ji-Wei Xie, Ji-Lin Zhou ยท 2026

Approximately 25--50\% of white dwarfs (WDs) exhibit metal absorption lines in their photospheres, interpreted as evidence of ongoing/recent accretion of planetary debris from remnant systems. Previouโ€ฆ

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Quantitative Pulse Shape-Instability Analysis Using 2D-Runs FROG

Pedram Abdolghader, Rana Jafari, Abinash Das, Bilol Banerjee, Ellen P. Crews, Rick Trebino ยท 2026

We present a method for quantifying pulse-shape instability in a train of pulses using multi-shot Second-Harmonic-Generation Frequency-Resolved Optical Gating (SHG FROG). All versions of multi-shot FRโ€ฆ

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