Axionic black holes and an aharonov-bohm effect for strings

Mark J. Bowick, Steven B. Giddings, Jeffrey A. Harvey, Gary T. Horowitz, Andrew Strominger

Research output: Contribution to journalArticlepeer-review

149 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2823-2826
Number of pages4
JournalPhysical Review Letters
Issue number25
StatePublished - 1988

ASJC Scopus subject areas

  • General Physics and Astronomy


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