All Local Gauge Invariants for Perturbations of the Kerr Spacetime.
All Local Gauge Invariants for Perturbations of the Kerr Spacetime.
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克尔时空扰动的所有局域规范不变量。
DOI:
10.1103/physrevlett.121.051104
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发表时间:
2018
影响因子:
8.6
通讯作者:
Thomas Bäckdahl
中科院分区:
文献类型:
--
作者:
Steffen Aksteiner;Thomas Bäckdahl
We present two complex scalar gauge invariants for perturbations of the Kerr spacetime defined covariantly in terms of the Killing vectors and the conformal Killing-Yano tensor of the background together with the linearized curvature and its first derivatives. These invariants are, in particular, sensitive to variations of the Kerr parameters. Together with the Teukolsky scalars and the linearized Ricci tensor, they form a minimal set that generates all local gauge invariants. We also present curvature invariants that reduce to the gauge invariants in the linearized theory.
影响因子:
5
作者:
Aksteiner S
通讯作者:
Aksteiner S