NITheP - National Institute For Theoretical Physics

The National Institute for Theoretical Physics, and the Centre for Theoretical Physics, School of Physics, would like to invite to its coming talk in the theory seminar series, entitled:

"CFT Duals of Black Rings With Higher Derivative Terms"

to be presented by Dr. Kevin Goldstein (University of the Witwatersrand)

Abstract: We study possible CFT duals of supersymmetric five dimensional black rings in the presence of supersymmetric higher derivative corrections to the N=2 supergravity action. A Virasoro algebra associated to an asymptotic symmetry group of solutions is defined by using the Kerr/CFT approach. We find the central charge and compute the microscopic entropy which is in precise agreement with the macroscopic entropy. Although apparently related to a different aspect of the near-horizon geometry and a different Virasoro algebra, we find that the c-extremization method leads to the same central charge and microscopic entropy computed in the Kerr/CFT approach. The relationship between these two point of view is clarified by relating the geometry to a self-dual orbifold of AdS3.

Date: Wednesday, 28th September 2011
Venue: Honours Room, 2nd floor, P222
Time: 13.20 - 14.10

For more information please contact:

Alan S. Cornell

School of Physics
University of the Witwatersrand
Private Bag 3
Wits 2050
South Africa

Tel.:+27-11-717-6819