动态辅助Schwinger效应中轴向场的研究

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-03-14 DOI:10.1103/physrevd.111.056017

Chengpeng Yu

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引用次数: 0

摘要

动态辅助Schwinger效应，即在强慢变场和弱高频场的作用下，在真空中产生费米子-反费米子对，已经成为探索QED真空结构和非线性动力学的一个很有前途的途径。然而，轴向场在这一现象中的作用仍未得到充分探讨。本研究旨在分析空间轴向场对动态辅助施温格效应中粒子产生的影响。利用基于Floquet-Magnus展开的高频有效理论，我们证明了一个空间轴向场可以作为圆极化高频平面波的有效场出现，并且显著增加了费米子在不同时间尺度上产生的数量。这种增强为施温格效应的实验实现提供了理论见解和有用的工具。2025年由美国物理学会出版

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Study on axial fields in the dynamically assisted Schwinger effect

The dynamically assisted Schwinger effect, the generation of fermion-antifermion pairs in vacuum under a strong, slow-varying field and a weak, high-frequency field, has become a promising avenue to probe the vacuum structure and the nonlinear dynamics of QED. However, the role of axial fields in this phenomenon has remained underexplored. This study aims at analyzing how spatial axial fields influence particle production in the dynamically assisted Schwinger effect. Employing the high-frequency effective theory based on the Floquet-Magnus expansion, we demonstrate that a spatial axial field can occur as the effective field of a circular polarized high-frequency plane wave and significantly increase the number of fermions produced across different timescales. This enhancement offers both theoretical insights and useful tools for the experimental implementation of the Schwinger effect.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.