标量张量引力中球对称时空的稳定性

IF 1.2 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova, K. Badalov, R. Ibadov
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引用次数: 0

摘要

我们研究了bergmann - wagner - nordtvedt类标量张量理论(STT)引力场方程的真空静态、球对称解的线性稳定性,将我们自己限制在非幻体理论、无质量标量场和具有正史瓦西质量的构型中。我们认为只有小的径向(单极子)扰动最可能引起不稳定。该问题简化为与已知的广义相对论(GR)费雪解的扰动相同的类薛定谔主方程,但影响研究最终结果的相应边界条件取决于STT的选择及其内的特解。得到了Brans-Dicke, Barker和Schwinger STT以及GR非最小耦合到任意参数的标量场的稳定性或不稳定性结论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

On the Stability of Spherically Symmetric Space-Times in Scalar-Tensor Gravity

On the Stability of Spherically Symmetric Space-Times in Scalar-Tensor Gravity

We study the linear stability of vacuum static, spherically symmetric solutions to the gravitational field equations of the Bergmann–Wagoner–Nordtvedt class of scalar-tensor theories (STT) of gravity, restricting ourselves to nonphantom theories, massless scalar fields and configurations with positive Schwarzschild mass. We consider only small radial (monopole) perturbations as the ones most likely to cause an instability. The problem reduces to the same Schrödinger-like master equation as is known for perturbations of Fisher’s solution of general relativity (GR), but the corresponding boundary conditions that affect the final result of the study depend on the choice of the STT and a particular solution within it. The stability or instability conclusions are obtained for the Brans–Dicke, Barker and Schwinger STT as well as for GR nonminimally coupled to a scalar field with an arbitrary parameter \(\xi\).

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来源期刊
Gravitation and Cosmology
Gravitation and Cosmology ASTRONOMY & ASTROPHYSICS-
CiteScore
1.70
自引率
22.20%
发文量
31
审稿时长
>12 weeks
期刊介绍: Gravitation and Cosmology is a peer-reviewed periodical, dealing with the full range of topics of gravitational physics and relativistic cosmology and published under the auspices of the Russian Gravitation Society and Peoples’ Friendship University of Russia. The journal publishes research papers, review articles and brief communications on the following fields: theoretical (classical and quantum) gravitation; relativistic astrophysics and cosmology, exact solutions and modern mathematical methods in gravitation and cosmology, including Lie groups, geometry and topology; unification theories including gravitation; fundamental physical constants and their possible variations; fundamental gravity experiments on Earth and in space; related topics. It also publishes selected old papers which have not lost their topicality but were previously published only in Russian and were not available to the worldwide research community
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