Role of string excitations in the last stages of black-hole evaporation

Details Role of string excitations in the last stages of black-hole evaporation Role of string excitations in the last stages of black-hole evaporation

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..56..424b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 56, Feb. 3, 1986, p. 424-427.

Astronomy and Astrophysics

Astronomy

46

Black Holes (Astronomy), Gravitation Theory, Quantum Theory, String Theory, Entropy (Statistics), Evaporation, Phase Diagrams, Thermodynamics

Scientific paper

It is argued that the massive modes of the superstring can play an important role in the last stages of black-hole evaporation. If the Bekenstein-Hawking entropy is the true statistical entropy of an evaporating black hole, it becomes probable for a black hole to disappear by making a transition to an excited string state. The excited string state can then decay to massless radiation, avoiding the naked singularity of the semiclassical picture. The energy-volume phase diagram is also constructed separating the three phases: pure radiation, black hole and radiation, and massive string modes and radiation.

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