论运动理论中的引力滞回

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2024-12-03 DOI:10.1088/1475-7516/2024/12/002

Raihaneh Moti and Ali Shojai

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引用次数: 0

摘要

广义相对论本质上是非线性的，因此可能导致类似迟滞的效应，并导致系统记住引力场的足迹。在这里，我们利用弯曲时空中的运动理论研究了这种效应。结果表明，熵率具有这种滞后特性。然后考虑一些特殊时空的效应，包括史瓦西黑洞，弗里德曼-莱马特-罗伯逊-沃克宇宙学解，以及受引力波脉冲扰动的平坦闵可夫斯基时空。结果表明，熵率存在一定的滞后效应。

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On the gravitational hysteresis in the kinetic theory

General theory of relativity is non-linear in nature and therefore can result in hysteresis-like effects and cause systems to remember the footprint of the gravitational field. Here we have investigated this effect using the Kinetic theory in curved spacetime. It is shown that the entropy rate experiences this hysteresis behavior. The effect is then considered for some special spacetimes, including Schwarzschild black hole, Friedmann-Lemaître-Robertson-Walker cosmological solution, and the flat Minkowski spacetime perturbed by a gravitational wave pulse. It is shown that there is some hysteresis effect for the entropy rate.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.