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작성자 CQUeST 날짜 2017-02-01
제목 [Seminar]Feb. 8(Wed), 12:00pm, Hossein Yavartanoo

Date-Time :  Feb. 8(Wed), 12:00pm

Place : R1029

Speaker : Hossein Yavartanoo

Institute : Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China

Title : Fluffballs and black hole microstates.

Abstract : I will argue that microstates of black holes are the subset of  near horizon soft hairs  which cannot be extended to beyond the near horizon region. These are certain geometries which are locally described by the same mass/angular momentum as the original black hole solution but are labelled by charges which are arranged under the symmetry group of residual diffeomorphism. These microstates are a specific class of near horizon soft hairs and as I demonstrate, their counting through Hardy-Ramanujan formula reproduces the thermodynamic entropy of the original black hole solution.  

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