Can black-hole entropy be quantized?

Details Can black-hole entropy be quantized? Can black-hole entropy be quantized?

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991cha%26a..15..164w&link_type=abstract

Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 15, June 1991, p. 164-168. Translation.

Astronomy and Astrophysics

Astronomy

Accretion Disks, Black Holes (Astronomy), Entropy, Quantum Theory, Bose Geometry, Cosmology, String Theory

Scientific paper

The remnant mass at the last stage of black hole evaporation is of the order of the Planck mass and the corresponding entropy is of the order of 2 pi(kB). On the basis of Bekenstein's work, the minimum entropy increase when a black hole accretes matter is found to be 2 pi(kB); this gives a lower bound of the Planck mass on the mass accretable by a black hole, which corresponds again to a minimum black hole entropy of the order of 2 pi(kB). Moreover, the minimum entropy and the minimum entropy increase are not affected by gravitation, hence the above statements also hold in the early universe.

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