Entropy and area
Mark SrednickiCenter for Particle Astrophysics, University of California, Berkeley, California 94720
1993en
ABI
Abstract
The ground-state density matrix for a massless free field is traced over the degrees of freedom residing inside an imaginary sphere; the resulting entropy is shown to be proportional to the area (and not the volume) of the sphere. Possible connections with the physics of black holes are discussed.
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Cited by 20 references