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

The IACOB project: XVII. Nitrogen abundances in Galactic O-type stars: further hints for separating binary-interaction products from effectively single stars

C. Martinez-Sebastian, G. Holgado, S. Simon-Diaz, F. Martins, J. Puls ยท 2026

Context. Growing evidence is revealing the crucial role of binarity in massive star evolution. This affects evolution models and demands a refinement of the available observational constraints. Aims. โ€ฆ

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Physics Preprint PDF DOI

Leptoquarks and the Emergence of the Standard Model Gauge Group in a Self-Consistent Preon Model

Risto Raitio ยท 2026

We show that in a self-consistent preon model, where Standard Model quarks and leptons are three-body composites confined at a metacolor scale Lambda_cr ~ 10^14 GeV, both leptoquarks and the Standard โ€ฆ

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Physics Preprint PDF DOI

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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Physics Preprint PDF DOI

Fractional Cosmic String Loops In Expanding Universe

Pankaj Chaturvedi, Bikram Nath ยท 2026

We study the dynamics of circular cosmic string loops in a spatially flat Friedmann Lema\^itre Robertson Walker universe within a fractional Polyakov framework that incorporates nonlocal memory effectโ€ฆ

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Physics Preprint PDF DOI

Fundamental Physics, Existential Risks and Human Futures

Adrian Kent (Centre for Quantum Information, Foundations, DAMTP, University of Cambridge, Perimeter Institute for Theoretical Physics) ยท 2026

Over the past 25 years, I have been involved in some intriguing developments in the foundations of physics, exploring the quantum reality problem, the relationship between quantum theory and gravity aโ€ฆ

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Physics Preprint PDF DOI

Microsecond-resolved electro-optic dual-comb spectroscopy in the 10~12.5 $\mu$m fingerprint region for radical kinetics

Pei-Ling Luo, I-Yun Chen ยท 2026

Dual-comb spectroscopy enables broadband, high-resolution measurements with microsecond temporal resolution, but extending this capability to the 10~12.5 $\mu$m molecular fingerprint region remains teโ€ฆ

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Physics Preprint PDF DOI

A conservative low-order model for Boussinesq baroclinic fronts

Nadav Yovel, Eyal Heifetz ยท 2026

The internal dynamics of baroclinic fronts are governed by a fundamental interplay: turbulent eddies systematically act to disrupt thermal wind balance, with baroclinic eddies flattening isopycnals anโ€ฆ

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Geometry-Based Neural-Network Prediction of Electron Localization Function Topology in Dense Hydrogen

Xiaoyu Wang, Miriam Marques, Sergio Gomez, Francesc Serratosa, Eva Zurek, Julia Contreras-Garcia ยท 2026

We develop a machine-learning framework to predict the electron localization function (ELF) of pure, dense hydrogen directly from atomic geometry, bypassing explicit electronic-structure calculations.โ€ฆ

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Physics Preprint PDF DOI

Studying spherical collapse and its implications in the Eddington-inspired Born-Infeld gravity theory

A. M Velasquez-Toribio ยท 2026

We investigate spherical collapse in Eddington-inspired Born--Infeld (EiBI) gravity in the subhorizon, pressureless, and quasi-static regime, emphasizing the matter-gradient correction that appears inโ€ฆ

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A Multi-Level Integrity Evaluation Framework for Quantum Circuits under Controlled Anomaly Injection

Ejaz Ahmed, Boshuai Ye, Syed Hamza Shah, Muhammad Azeem Akbar, Arif Ali Khan ยท 2026

Ensuring the integrity of quantum circuits is a significant challenge in the Noisy Intermediate-Scale Quantum (NISQ) era, where circuits are subject to compilation transformations, hardware constraintโ€ฆ

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Effects of nucleon-nucleon short-range correlation and symmetry energy on the evolution of newly born magnetars

C. X. Liu, T. F. Feng, J. M. Dong ยท 2026

Millisecond magnetars are widely suggested as the central engines powering hydrogen-poor superluminous supernovae (SLSNe). These magnetars primarily lose huge rotational energy through gravitational wโ€ฆ

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Physics Preprint PDF DOI

Tidal Heating of Stellar Clusters in Fuzzy Dark Matter Halos

Yiheng Liu, Xinyu Li ยท 2026

Ultra-faint dwarf galaxies serve as powerful testing grounds for wave dark matter models through dynamical stellar heating. Previous simulation-based work derived a lower bound on the fuzzy dark matteโ€ฆ

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A Category-Theoretic Framework from Biological Mechanics to Engineered Stimulus-Response Systems

Lee Marom, Skylar Tibbits, Gioele Zardini, Markus J. Buehler ยท 2026

Natural materials achieve adaptive behavior through hierarchical organization and coupled mechanisms across scales. Their translation into engineering, however, remains largely heuristic. What is missโ€ฆ

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Quantum Probe to the Higher Dimensional Yang-Mills Singularity

M. Mangut, O. Gurtug, M. Halilsoy ยท 2026

We investigate the quantum nature of naked curvature singularities in Einstein-Yang-Mills (EYM) theory using the Horowitz-Marolf (HM) criterion, which assesses quantum singularities via the evolution โ€ฆ

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Amplitude Encoding of Slater-Type Orbitals via Matrix Product States: Efficient State Preparation and Integral Evaluation on Quantum Hardware

Sorin Bolos ยท 2026

Slater-type orbitals (STOs) provide the physically correct description of atomic wavefunctions but have been largely replaced by Gaussian-type orbitals in computational chemistry due to the lack of clโ€ฆ

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Early Evolution of Earth-Directed Coronal Mass Ejections in the Vicinity of Coronal Holes

Suresh Karuppiah, Mateja Dumbovic, Karmen Martinic, Manuela Temmer, Stephan G. Heinemann, Bojan Vrsnak ยท 2026

We investigate the deflection and rotation behavior of 49 Earth-directed coronal mass ejections (CMEs) spanning the period from 2010 to 2020 aiming to understand the potential influence of coronal holโ€ฆ

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Exponentially improved quantum simulation of scalar QFT

Qing-Hong Cao, Ying-Ying Li, Xiaohui Liu, Liang-Qi Zhang, Ke Zhao ยท 2026

Quantum simulations of scalar quantum field theories (QFT) provide important benchmarks for demonstrating quantum advantage. We revisit digitization in the occupation basis, which is typically hindereโ€ฆ

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From Wavefunction Collapse to Superconductivity: Evolution of the Electronic State in Compressed GaNb4Se8

Yuejian Wang, Zhongyan Wu, K C Bhupendra, Dongzhou Zhang, Lin Wang, Sanjay V. Khare, Lilian Prodan, Vladimir Tsurkan ยท 2026

Understanding how electronic transport evolves from localized to itinerant regimes in correlated cluster solids remains an important challenge in condensed-matter physics. Here we investigate the presโ€ฆ

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Hardware-Efficient Quantum Optimization for Transportation Networks via Compressed Adiabatic Evolution

Talha Azfar, Ruimin Ke, Sean He, Cara Wang, Jose Holguin-Veras ยท 2026

Transportation systems such as urban logistics, vehicle routing, and infrastructure planning require solving large-scale combinatorial optimization problems under complex constraints. Problems such asโ€ฆ

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Evolving Low- and Intermediate-Mass Binaries: Departures from Classical Theory

Lionel Siess ยท 2026

This review explores the physical mechanisms driving the evolution of low- and intermediate-mass binary star systems, with particular emphasis on emerging mechanisms that challenge classical paradigmsโ€ฆ

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