时间:11月6日周三下午3:30 地点 ： 教二223（腾讯会议号：355 958 3479）

报告人: Robert Mann (University of Waterloo)

报告摘要: We apply the method of conical singularities to calculate the tree-level entropy and itsone-loop quantum corrections for a charged Kerr black hole. The Euclidean geometry for the Kerr.Newman metric is considered. We show that for an arbitrary periodization in Euclidean space thereexists a conical sineularity at the horizon,its δ-function-like curvatures are calculated and areshown to behave similar to the static case. The heat kernel expansion for a scalar field on thisconical space background is derived and the (divergent)quantum correction to the entropy isobtained. it is areued that these divergences can be removed by renormalization of couplings in thetree-level gravitational action in a manner similar to that for a static black hole

投告人简介: Robert B. Mann (PhD University of Toronto) is Professor of Physics at the University of Waterloo; he has been a visiting professor at Harvard and Cambridge Universities,and the KavliInstitute for Theoretical Physics.He is an Affiliate Member of the Perimeter Institute and the institute for Quantum Computing. Author of over 350 papers, he has received numerous awards,including a Fulbright Fellowship, Teaching Excellence awards from the Ontario Undergraduate Student Alliance and from the University of Waterloo, and a Presidential Award of merit from theUniversity of Waterloo. He was chair of the Department of Physics and Astronomy at the Universityof Waterloo from 2001-2008 and is a past President of the Canadian Association of Physicists (2009-2011) and the Canadian Scientific & Christian Affiliation (1996-2007). He has served on the Advisory Board of the John Templeton Foundation.

His research interests are in black holes, cosmology, particle physics, quantum foundationsand quantum information, as well as the science/religion dialogue