arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.02057gr-qchep-thmath-phmath.MP
收藏

量子迹反常引起的四维动力学黑洞的蒸发

Evaporation of four-dimensional dynamical black holes sourced by the quantum trace anomaly

Paolo Meda, Nicola Pinamonti, Simone Roncallo, Nino Zanghì

摘要:

研究了在引力坍缩中形成的四维球对称黑洞的蒸发。利用半经典爱因斯坦方程,分析了与标量曲率共形耦合的无质量量子标量场的反作用。我们表明,蒸发是链接到一个进入的负能量通量在动力学视界,这个通量是由量子物质的痕迹异常的黑洞视界外,只要一个合适的平均能量条件得到满足。为了说明的目的,我们评估的负流入流量和相应的蒸发率的情况下,一个零辐射星描述的Vaidya时空。

英文摘要:

We study the evaporation of a four-dimensional spherically symmetric black hole formed in a gravitational collapse. We analyze the back-reaction of a massless quantum scalar field conformally coupled to the scalar curvature by means of the semiclassical Einstein equations. We show that the evaporation is linked to an ingoing negative energy flux at the dynamical horizon and that this flux is induced by the quantum matter trace anomaly outside the black hole horizon whenever a suitable averaged energy condition is satisfied. For illustrative purposes, we evaluate the negative ingoing flux and the corresponding rate of evaporation in the case of a null radiating star described by the Vaidya spacetime.

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。

↑