Quasinormal modes of black holes in scalar-tensor theories with nonminimal derivative couplings
Quasinormal modes of black holes in scalar-tensor theories with nonminimal derivative couplings
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DOI：
10.1103/physrevd.96.064048
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发表时间：
2017-09
影响因子：
5
通讯作者：
R. Dong;Jeremy Sakstein;D. Stojkovic
中科院分区：
文献类型：
--
作者：
R. Dong;Jeremy Sakstein;D. Stojkovic
我们研究了一类移位对称的Horndeski理论中渐近反de Sitter黑洞的准正则模，其中引力标量与爱因斯坦张量是可导耦合的。时空不同于精确的Schwarzschild-反-de-Sitter，导致准正则模的有效势不同，谱也不同。我们数值计算了无质量测试标量与度规的最小耦合和与引力标量的非最小耦合的谱。我们发现了与广义相对论中发现的Schwarzschild-反-de-Sitter黑洞有趣的不同之处。
We study the quasinormal modes of asymptotically anti--de Sitter black holes in a class of shift-symmetric Horndeski theories where a gravitational scalar is derivatively coupled to the Einstein tensor. The spacetime differs from exact Schwarzschild--anti--de Sitter, resulting in a different effective potential for the quasinormal modes and a different spectrum. We numerically compute this spectrum for a massless test scalar coupled both minimally to the metric, and nonminimally to the gravitational scalar. We find interesting differences from the Schwarzschild--anti--de Sitter black hole found in general relativity.