(2024-06-18) Seminar: Jun Nian (年骏) -- The Quantum Perspectives of Kerr Black Hole Formation and Evaporation


年 骏  助理教授学术报告

Title: The Quantum Perspectives of Kerr Black Hole Formation and Evaporation

Speaker: Jun Nian  (年骏)

Affiliation: ICTP-AP, University of Chinese Academy of Sciences(中国科学院大学国际理论物理中心(亚太地区)

Time: 16:00-17:00, Tuesday, 18th June, 2024 (UTC+8, Beijing Time)

Venue: Room 1502, Shing-Tung Yau Center, Yifu Architecture Building, Sipailou Campus of Southeast University, Nanjing


    Zoom Meeting (ID: 385 442 0225; Passcode: yauc)

Inviter: Jianfei Xu (许剑飞)


Black holes are fascinating objects in nature. Although they are introduced as classical solutions in general relativity, their intrinsic nature should be quantum, which manifests during the black hole formation and evaporation processes. If string theory is claimed to be a quantum gravity candidate, it should be able to provide a consistent picture and elucidate some perspectives for black hole formation and evaporation. In this talk, we will focus on rotating Kerr black holes. On the one hand, we will show through a toy model that Kerr black holes can emerge naturally from the Virasoro minimal string theory. On the other hand, we use a field-theoretic approach to compute the time evolution of entanglement entropy between an evaporating Kerr black hole and its Hawking quanta, i.e., the Page curve, which provides a new resolution to the long-standing black hole information paradox. This talk is based on my recent papers, 2312.14287 and 2210.06762, and some work in progress.


Jun Nian is an assistant professor at the International Centre for Theoretical Physics Asia Pacific (ICTP-AP), University of Chinese Academy of Sciences. He received a Diplom degree from the University of Heidelberg in 2009 and a Ph.D. degree from Stony Brook University in 2015. Before joining ICTP-AP in 2021, he was a postdoctoral fellow at Institut des Hautes Etudes Scientifiques (IHES) and the University of Michigan. His research interests include quantum field theory, gravity theory, and string theory, with a recent focus on the quantum effects of black holes.