Quantum gravitational corrections to a star metric and the black hole limit
Quantum gravitational corrections to a star metric and the black hole limit
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DOI：
10.1103/physrevd.100.086010
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发表时间：
2019-09
影响因子：
5
通讯作者：
X. Calmet;R. Casadio;F. Kuipers
中科院分区：
文献类型：
--
作者：
X. Calmet;R. Casadio;F. Kuipers
在这篇文章中，我们考虑了从恒星度规到曲率为二阶的全集量子引力修正。当我们使用有效的场论方法时，这些修正适用于任何基于一般坐标不变性的量子引力模型。然后，我们讨论了黑洞的极限，并发现了一个有趣的现象，它可能会揭示天体物理黑洞的本质：虽然恒星度规在曲率上得到二阶修正，但真空解决方案，如黑洞度规，不会。当一颗恒星坍塌时，这些修正会发生什么？
In this paper we consider the full set of quantum gravitational corrections to a star metric to second order in curvature. As we use an effective field theoretical approach, these corrections apply to any model of quantum gravity that is based on general coordinate invariance. We then discuss the black hole limit and identify an interesting phenomenon which could shed some light on the nature of astrophysical black holes: while star metrics receive corrections at second order in curvature, vacuum solutions such as black hole metrics do not. What happens to these corrections when a star collapses?