Scalar induced gravitational waves in different gauges
Scalar induced gravitational waves in different gauges
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DOI：
10.1103/physrevd.101.063018
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发表时间：
2019-12
影响因子：
5
通讯作者：
Chengchao Yuan;Zu-Cheng Chen;Q. Huang
中科院分区：
文献类型：
--
作者：
Chengchao Yuan;Zu-Cheng Chen;Q. Huang
本文在同步规范、牛顿规范和均匀曲率规范三种不同的规范下，计算了辐射支配时代伴随原初黑洞形成的标量引力波，发现在这三种不同的规范下，标量引力波的能量密度谱是相同的。
In this letter we calculate the scalar induced gravitational waves (SIGWs) accompanying the formation of primordial black hole during the radiation dominated era in three different gauges, i.e. synchronous gauge, Newton gauge and uniform curvature gauge, and we find that the energy density spectra of SIGWs, $\ogw(k)$, are identical in these three different gauges.