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Black hole entropy in canonical quantum gravity and superstring theory

1994
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Physical Review D, Particles and fields
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In this paper the entropy of an eternal Schwarzschild black hole is studied in the limit of innite black hole mass. The problem is addressed from the point of view of both canonical quantum gravity and superstring theory. The entropy per unit area of a free scalar eld propagating in a xed black hole background is shown to be quadratically divergent near the horizon. It is shown that such quantum corrections to the entropy per unit area are equivalent to the quantum corrections to the

doi:10.1103/physrevd.50.2700
pmid:10017902
fatcat:oxaly3gblzgpjk5cigkmjzwmve