Physical Review D 77,10 (2008)
We study numerically gravitational collapse of a spherically symmetric instanton particle in five dimensions. We show that the late stages of the process are characterized by a nearly constant "free energy," the value of which matches (within numerical uncertainties) the value obtained from standard black-hole thermodynamics. This suggests a purely classical interpretation of the free energy of a black hole.
Astronomy & Astrophysics;; Physics, Particles & Fields
Date of this Version