Work

Four-dimensional black holes in string theory

Year: 1993

Type: article

Abstract: Exact solutions of heterotic string theory corresponding to four-dimensional charge $Q$ magnetic black holes are constructed as tensor products of an $\frac{\mathrm{SU}(2)}{Z(2Q+2)}$ WZW orbifold with a (0,1) supersymmetric SU(1,1)/U(1) WZW coset model. The spectrum is analyzed in some detail. "Bad" marginal operators are found which are argued to deform these theories to asymptotically flat black holes. Surprising behavior is found for small values of $Q$, where low-energy field theory is inapplicable. At the minimal value $Q=1$, the theory degenerates. Renormalization-group arguments are given that suggest the potential gravitational singularity of the low-energy field theory is resolved by a massive two-dimensional field theory. At $Q=0$, a stable, neutral "remnant," of potential relevance to the black hole information paradox, is found.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.48.5784

Authors: Steven B. Giddings, Joseph Polchinski, Andrew Strominger

Institutions: University of California, Santa Barbara, Kavli Institute for Theoretical Physics

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: U.S. Department of Energy

Award: HIGH ENERGY USER GROUP