数学研究所
学术报告
数学物理研讨班
Speaker: 张聪 博士 （北师大）
Inviter: 吴小宁 研究员
Language: Chinese
Title: Black holes and covariance in effective quantum gravity: A solution without Cauchy horizons
Time&Venue: 2025年4月10日（星期四） 19:00-20:00
& 腾讯会议 145911918 会议密码：250410
Abstract: By solving effective loop quantum equation, a new Hamiltonian constraint is obtained, incorporating free functions that can account for quantum gravity effects. Specifying these functions allows for an analysis of the resulting spacetime structure. Remarkably, in this model, the classical singularity is replaced by a region where the metric asymptotically approaches a Schwarzschild-de Sitter one with negative mass. Unlike previously studied spacetime structures, this new quantum-corrected model avoids the presence of Cauchy horizons, potentially suggesting its stability under perturbations. Finally, the covariance of dust field coupling within the effective
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