中科院数学与系统科学研究院
数学研究所
数学物理研讨班
报告人： 蒋 杰 副教授（北京师范大学）
题 目：Weak cosmic censorship conjecture in Einstein gravity
时 间：2021.09.28（星期二），10:00-11:00
地 点：思源楼1013教室
摘 要：The validity of the weak cosmic censorship conjecture (WCCC) is a remaining problem in classical general relativity. Recently, Sorce and Wald proposed a new gedanken experiment to test the WCCC of Kerr-Newman black holes under the second-order approximation of perturbation. A natural question is whether the WCCC is also valid when the background spacetime couples to any matter hairs. In our investigation, we extend Sorce-Wald method to the cases without the explicit expressions of the background metric and the Lagrangian of the matter hairs. As a result, we find that a nearly extremal static spherically symmetric black hole in Einstein gravity cannot be destroyed under the second-order approximation as long as the background matter hairs and perturbation matter fields satisfy the null energy condition.
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