世界线等离子体的引力透镜效应

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

Physical Review D Pub Date : 2025-03-25 DOI:10.1103/physrevd.111.054030

Francesco Comberiati, Leonardo de la Cruz

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引用次数: 0

摘要

我们用世界线框架研究了光线在冷的非磁化等离子体中的偏转。从Synge的哈密顿形式出发，构造了一个位置-空间作用，并用它来摄动地计算光的弯曲角。在均匀的情况下，作用降低到大质量粒子的作用，使我们能够利用一个众所周知的类比，在介质存在的情况下提取光的弯曲角度。对于非齐次情况，我们考虑幂律模型并及时构造费曼规则来计算纯等离子体诱导的次领先阶弯曲角修正。2025年由美国物理学会出版

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Gravitational lensing in a plasma from worldlines

We study the deflection of light rays in a cold, nonmagnetized plasma using the worldline framework. Starting from Synge’s Hamiltonian formalism, we construct a position-space action and use it perturbatively to calculate light bending angles. In the homogeneous case, the action reduces to that of a massive particle, allowing us to extract the bending angle of light in the presence of the medium using a well-known analogy. For the inhomogeneous case, we consider a power law model and construct Feynman rules in time to compute the purely plasma-induced corrections to the bending angle at next-to-leading-order.

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.