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arXiv 2103.01389gr-qchep-th
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慢转黑洞的标量化

Scalarization of slowly rotating black holes

Yun Soo Myung, De-Cheng Zou

摘要:

有趣的是,大多数黑洞诞生时都是缓慢旋转的。在Einstein-scalar-Chern-Simons(EsCS)理论中研究了慢转黑洞的标量化.在慢旋转近似中,CS项采用旋转参数$a$的线性形式,该参数决定了快子不稳定性。慢速旋转黑洞的速子不稳定性代表了自发标量化的开始。结果表明,对于正耦合的$α$,慢旋转的黑洞对球对称标量模扰动是不稳定的,而对于负耦合的无$a$束缚的黑洞对球对称标量模扰动是不稳定的.

英文摘要:

It is interesting to note that most black holes are born very slowly rotating. We investigate scalarization of slowly rotating black holes in the Einstein-scalar-Chern-Simons (EsCS) theory. In the slow rotation approximation, the CS term takes a linear form of rotation parameter $a$ which determines the tachyonic instability. The tachyonic instability for slowly rotating black holes represents the onset of spontaneous scalarization. It is shown that the slowly rotating black holes are unstable against a spherically symmetric scalar-mode perturbation for positive coupling $α$, whereas these black holes are unstable for negative coupling without any $a$-bound.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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