Do black holes really evaporate thermally

Details Do black holes really evaporate thermally Do black holes really evaporate thermally

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvl..45..949t&link_type=abstract

Physical Review Letters, vol. 45, Sept. 22, 1980, p. 949-951.

Astronomy and Astrophysics

Astrophysics

5

Black Holes (Astronomy), Evaporation, Thermal Radiation, Astrophysics, Flux Density, Stress Tensors

Scientific paper

The Raychaudhuri equation is used to analyze the effect of the Hawking radiation back reaction upon a black-hole event horizon. It is found that if the effective stress-energy tensor of the Hawking radiation has negative energy density as expected, then an evaporating black hole initially a solar mass in size must disappear in less than a second. This implies that either the evaporation process, if it occurs at all, must be quite different from what is commonly supposed, or else black-hole event horizons - and hence black holes - do not exist.

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