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Seminars»13.11.2014 - Tolga Birkandan : Microscopic Interpretation of Black Holes

13.11.2014 - Tolga Birkandan : Microscopic Interpretation of Black Holes

Microscopic Interpretation of Black Holes

Tolga Birkandan
ITU, Department of Physics, İstanbul
13 November 2014, Thursday, 14:40
Cavid Erginsoy Seminar Room, Physics Department, 3rd floor

Abstract: Macroscopic classical theory of black holes regards only the event horizon. However, the microscopic treatment of black holes shows that all horizons contribute in calculations. Therefore, the calculations of scattering and gauge/gravity duality should involve probing the vicinity of all horizons. Derivation of the Klein-Gordon equation, studying its separability and probing the residua associated with the horizons are the key issues that constitutes the core of the calculations for the black hole internal structure. One finds the physical properties, namely surface gravities and angular velocities associated with the horizons by probing the radial part of the Klein-Gordon equation. As the surface gravity carry the information of the Hawking temperature on the horizon, we see the thermodynamics explicitly in the wave equation for each horizon.

I will start with an introduction on black holes and their thermodynamics. Then, I will focus on two rotating solutions of 5D gauged supergravity. The first one is the solution of Chong et al. (Phys.Rev.Lett.95:161301,2005) having three equal charges and the second one is Wu's most general solution of maximally supersymmetric gauged supergravity in 5D (Phys.Lett. B707: 286, 2012).

Reminder: Tea and cookies will be in the seminar room before the seminar.