Statistical mechanical origin of the entropy of a rotating, charged black hole
Abstract
It is shown that the entropy of a rotating, charged black hole is, in senses made precise in the paper, (i) the logarithm of the number of quantum mechanically distinct ways that the hole could have been made, and (ii) the logarithm of the number of configurations that the hole's ``atmosphere,'' as measured by stationary observers, could assume in the presence of its background noise of acceleration radiation. In addition, a proof is given of the generalized second law of thermodynamics.
 Publication:

Physical Review Letters
 Pub Date:
 May 1985
 DOI:
 10.1103/PhysRevLett.54.2171
 Bibcode:
 1985PhRvL..54.2171Z
 Keywords:

 Black Holes (Astronomy);
 Entropy;
 Rotating Bodies;
 Statistical Mechanics;
 Asymptotic Properties;
 Quantum Mechanics;
 Schwarzschild Metric;
 SpaceTime Functions;
 Astrophysics;
 04.60.+n;
 05.70.Ln;
 05.90.+m;
 97.60.Lf;
 Nonequilibrium and irreversible thermodynamics;
 Other topics in statistical physics thermodynamics and nonlinear dynamical systems;
 Black holes