Some Simple Black Hole Thermodynamics

Details Some Simple Black Hole Thermodynamics Some Simple Black Hole Thermodynamics

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phtea..41..299l&link_type=abstract

The Physics Teacher, Volume 41, Issue 5, pp. 299-301 (2003).

Physics

1

Quantum Aspects Of Black Holes, Evaporation, Thermodynamics, Black Holes

Scientific paper

In his recent popular book The Universe in a Nutshell, Steven Hawking gives expressions for the entropy1 and temperature (often referred to as the ``Hawking temperature''2 ) of a black hole:3 S = kc34ℏG A T = ℏc38πkGM, where A is the area of the event horizon, M is the mass, k is Boltzmann's constant, ℏ = h2π (h being Planck's constant), c is the speed of light, and G is the universal gravitational constant. These expressions can be used as starting points for some interesting approximations on the thermodynamics of a Schwarzschild black hole, of mass M, which by definition is nonrotating and spherical with an event horizon of radius R = 2GMc2.4,5

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