Upper bound on entropy

Details Upper bound on entropy Upper bound on entropy

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nciml..41..493k&link_type=abstract

Nuovo Cimento, Lettere, Serie 2, vol. 41, Dec. 8, 1984, p. 493-496.

Astronomy and Astrophysics

Astrophysics

9

Astrophysics, Black Holes (Astronomy), Entropy, Stellar Evolution, Black Body Radiation, Maxima

Scientific paper

The upper bound proposed by Bekenstein (1982) for the entropy S of a system (such as a black hole) with energy E and 'length scale' R, S less than or equal to 2(pi)(ER) is examined theoretically. A somewhat more stringent limit, S less than or equal to 0.575(ER), is derived and shown to be independent of black-hole thermodynamic arguments. It is pointed out that Bekenstein's (1981 and 1982) arguments are valid only in the semiclassical approximation and assume both the existence of black holes and the applicability of semiclassical thermodynamics with them.

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