Youngsub Yoon
Seoul National University, South Korea
Title: Approximation of the naive black hole degeneracy
Biography
Biography: Youngsub Yoon
Abstract
Loop quantum gravity predicts that the area is quantized as the area operator only admits discrete eigenvalues. In 1996, Rovelli suggested a connection between the black hole entropy and the area spectrum; the number of ways in which the area of the black hole horizon can be expressed as the sum of the unit areas (i.e. area eigenvalues) is the black hole degeneracy. In this talk, I will calculate the black hole degeneracy (i.e. the exponential of black hole entropy) by using Rovelli’s idea. However, it is now widely believed in loop quantum grvity community that Rovelli’s picture of black hole entropy is not the complete answer, as one has to further impose an extra condition. The word “naive” in the naive black hole degeneracy means that this extra condition is not considered; I only use Rovelli’s idea. However, it may be possible that the naive black hole degeneracy is the real black hole degeneracy (i.e. that we do not need to take the extra condition) as I showed in another paper of mine with Brian Kong.