Speaker
Dr
Sourav Roychowdhury
(CQUeST, Sogang University)
Description
In this talk we discuss various aspects of the effective dynamics of Maxwell-Einstein scalar theories in the background of static, spherically symmetric and extremal black hole solution in (1+3) dimensions. We show that the effective one dimensional action (governed by the Attractor mechanism) from which the effective black hole potential (introduced by Ferrara-Gibbons-Kallosh) is usually computed, is the one dimensional effective Routhian of the original (1+3)d action. We further discuss the interplay of this Routhian framework, black hole potential and Sen’s entropy functional approach, enabling one to compute the black hole entropy.
