Black hole dynamics from instanton strings

Abstract

A D-5-brane bound state with a self-dual field strength on a 4-torus is considered. In a particular case this model reproduces the D5-D1 brane bound state usually used in the string theory description of 5-dimensional black holes. In the limit where the brane dynamics decouples from the bulk the Higgs and Coulomb branches of the theory on the brane decouple. Contrasting with the usual instanton moduli space approximation to the problem the Higgs branch describes fundamental excitations of the gauge field on the brane. Upon reduction to 2-dimensions it is associated with the so-called instanton strings. Using the Born-Infeld action for the D-5-brane we determine the coupling of these strings to a minimally coupled scalar in the black hole background. The supergravity calculation of the cross section is found to agree with the D-brane absorption probability rate calculation. We consider the near horizon geometry of our black hole and elaborate on the corresponding duality with the Higgs branch of the gauge theory in the large N limit. A heuristic argument for the scaling of the effective string tension is given.

37 pages, latex. Typos corrected, SUSY field configuration argued to be valid even when DBI corrections are important and two references added

References in corpus (14)

• AdS3 Black Holes and a Stringy Exclusion Principle
• Black Holes and Solitons in String Theory
• The No-ghost Theorem for AdS_3 and the Stringy Exclusion Principle
• Boundary dynamics and the statistical mechanics of the 2+1 dimensional black hole
• Scalar Absorption and the Breaking of the World Volume Conformal Invariance
• Exact absorption probabilities for the D3-brane
• Anti-de Sitter/CFT Correspondence in Three-Dimensional Supergravity
• U-duality between Three and Higher Dimensional Black Holes
• Branes probing black holes
• Black hole absorption cross-sections and the anti-de Sitter -- conformal field theory correspondence
• Gauge Theory Description of D-brane Black Holes: Emergence of the Effective SCFT and Hawking Radiation
• Entropy and Conformal Field Theories of AdS_3 Models
• The D1-D5 brane system in six dimensions
• Topological Ward Identity and Anti-de Sitter Space/CFT Correspondence

Cited by in corpus (5)

• Large N Field Theories, String Theory and Gravity
• Interacting Black Holes
• D1/D5 System with B-field, Noncommutative Geometry and the CFT of the Higgs Branch
• BPS Bound States of D6-branes and Lower Dimensional D-branes
• IIB Matrix Model with D1-D5 Backgrounds