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SU4238405 October 1989
 

Summary: SU­4238­405
October 1989
Axionic Black Holes from Massive Axions
Theodore J. Allen, Mark J. Bowick, and Amitabha Lahiri
Department of Physics
Syracuse University, Syracuse, NY 13244­1130
Abstract
A black hole may carry axionic charge in a theory which has gravity coupled to a
massless two­form Kalb­Ramond field. We show that this e#ect persists if the axion
has a topological mass term coupling the Kalb­Ramond potential to a U(1) gauge
field. Such mass terms arise in the low­energy e#ective theory of the string.
Bitnet addresses: tjallen@suhep, bowick@suhep, lahiri@suhep.

I. Introduction
The stationary black hole solutions to Einstein's equations in vacuo [1] are
uniquely characterized by the mass M and angular momentum J [2]. Generally one
expects that the gravitational field must be coupled to a massless field for a black hole
solution to acquire another parameter or charge. For the coupled Einstein­Maxwell
equations there are two additional parameters, the electric charge e and the magnetic
charge µ [3] and again there is a uniqueness theorem [4]. A great deal of the interest

  

Source: Allen, Theodore J. - Physics Department, Hobart and William Smith Colleges

 

Collections: Physics