Modifications to Plane Gravitational Waves from Minimal Lorentz Violation

General Relativity predicts two modes for plane gravitational waves. When a tiny violation of Lorentz invariance occurs, the two gravitational wave modes are modified. We use perturbation theory to study the detailed form of the modifications to the two gravitational wave modes from the minimal Lore...

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Main Author: Rui Xu
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/11/10/1318
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author Rui Xu
author_facet Rui Xu
author_sort Rui Xu
collection DOAJ
description General Relativity predicts two modes for plane gravitational waves. When a tiny violation of Lorentz invariance occurs, the two gravitational wave modes are modified. We use perturbation theory to study the detailed form of the modifications to the two gravitational wave modes from the minimal Lorentz-violation coupling. The perturbation solution for the metric fluctuation up to the first order in Lorentz violation is discussed. Then, we investigate the motions of test particles under the influence of the plane gravitational waves with Lorentz violation. First-order deviations from the usual motions are found.
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spelling doaj.art-4d868045a7b145a2a241de23d185c6172022-12-22T02:57:26ZengMDPI AGSymmetry2073-89942019-10-011110131810.3390/sym11101318sym11101318Modifications to Plane Gravitational Waves from Minimal Lorentz ViolationRui Xu0Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, ChinaGeneral Relativity predicts two modes for plane gravitational waves. When a tiny violation of Lorentz invariance occurs, the two gravitational wave modes are modified. We use perturbation theory to study the detailed form of the modifications to the two gravitational wave modes from the minimal Lorentz-violation coupling. The perturbation solution for the metric fluctuation up to the first order in Lorentz violation is discussed. Then, we investigate the motions of test particles under the influence of the plane gravitational waves with Lorentz violation. First-order deviations from the usual motions are found.https://www.mdpi.com/2073-8994/11/10/1318gravitational waveslorentz violationstandard-model extensiongeodesic deviation
spellingShingle Rui Xu
Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
Symmetry
gravitational waves
lorentz violation
standard-model extension
geodesic deviation
title Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
title_full Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
title_fullStr Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
title_full_unstemmed Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
title_short Modifications to Plane Gravitational Waves from Minimal Lorentz Violation
title_sort modifications to plane gravitational waves from minimal lorentz violation
topic gravitational waves
lorentz violation
standard-model extension
geodesic deviation
url https://www.mdpi.com/2073-8994/11/10/1318
work_keys_str_mv AT ruixu modificationstoplanegravitationalwavesfromminimallorentzviolation