Axionic black holes and an Aharonov-Bohm effect for strings

Details Axionic black holes and an Aharonov-Bohm effect for strings Axionic black holes and an Aharonov-Bohm effect for strings

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..61.2823b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 61, Dec. 19, 1988, p. 2823-2826. Research supported by the Harvard Society of Fel

Astronomy and Astrophysics

Astronomy

111

Black Holes (Astronomy), Field Theory (Physics), String Theory, Einstein Equations, Gravitational Effects, Space-Time Functions

Scientific paper

It is shown that a black hole of fixed mass can carry arbitrary axionic charge. The unique static black-hole solution is found to have vanishing axion field strength but nonvanishing potential. The axion charge cannot be detected by point particles, but can be detected by strings in a process analogous to the Aharonov-Bohm effect. It is argued that the existence of axion charge may play a significant role in the late stages of black-hole evaporation.

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