Gauge Theory Description of D-brane Black Holes: Emergence of the Effective SCFT and Hawking Radiation

Abstract

We study the hypermultiplet moduli space of an N=4, U(Q_1)xU(Q_5) gauge theory in 1+1 dimensions to extract the effective SCFT description of near extremal 5-dimensional black holes modelled by a collection of D1- and D5-branes. On the moduli space, excitations with fractional momenta arise due to a residual discrete gauge invariance. It is argued that, in the infra-red, the lowest energy excitations are described by an effective c=6, N=4 SCFT on T^4, also valid in the large black hole regime. The ``effective string tension'' is obtained using T-duality covariance. While at the microscopic level, minimal scalars do not couple to (1,5) strings, in the effective theory a coupling is induced by (1,1) and (5,5) strings, leading to Hawking radiation. These considerations imply that, at least for such black holes, the calculation of the Hawking decay rate for minimal scalars has a sound foundation in string theory and statistical mechanics and, hence, there is no information loss.

24 pages, LaTeX, very minor changes, to appear in Nucl. Phys. B

References in corpus (33)

• Microscopic Origin of the Bekenstein-Hawking Entropy
• Bound States Of Strings And $p$-Branes
• Black Hole Entropy from Near-Horizon Microstates
• Matrix String Theory
• D--branes and Spinning Black Holes
• TASI Lectures on D-Branes
• The Nature of Space and Time
• Black Hole Greybody Factors and D-Brane Spectroscopy
• EXTREMAL BLACK HOLES AND ELEMENTARY STRING STATES
• Elliptic Genera of Symmetric Products and Second Quantized Strings
• Comparing decay rates for black holes and D-branes
• D-brane field theory on compact spaces
• D-branes and Fat Black Holes
• The scattering matrix approach for the quantum black hole, an overview
• Universal Low-Energy Dynamics for Rotating Black Holes
• Lectures on Superstring and M Theory Dualities
• Black Holes in String Theory
• Microscopic derivation of the Bekenstein-Hawking entropy formula for non-extremal black holes
• Entropy of 4D Extremal Black Holes
• Macroscopic and Microscopic Entropy of Near-Extremal Spinning Black Holes
• Extremal Black Holes As Fundamental Strings
• Absorption vs Decay of Black holes in string theory and T-symmetry
• Absorption of Fixed scalars and the D-brane Approach to Black Holes
• Interactions involving D-branes
• Can the effective string see higher partial waves?
• Excitations of D-strings, Entropy and Duality
• Absorption of angular momentum by black holes and D-branes
• 5D Black Holes and Matrix Strings
• Testing Effective String Models of Black Holes with Fixed Scalars
• D-branes and Near Extremal Black Holes at Low Energies
• Dynamics of Dirichlet-Neumann Open Strings on D-branes
• D-brane Black Holes: Large-N Limit and the Effective String Description
• Toward Second-Quantization of D5-Brane

Cited by in corpus (16)

• Large N Field Theories, String Theory and Gravity
• Microscopic Formulation of Black Holes in String Theory
• Six-Dimensional Supergravity on S^3 X AdS_3 and 2d Conformal Field Theory
• Lectures on D-branes
• Interacting Black Holes
• Phase transitions in symmetric orbifold CFTs and universality
• D1/D5 Moduli in SCFT and Gauge Theory, and Hawking Radiation
• Bound States of Type I D-Strings
• D1/D5 System with B-field, Noncommutative Geometry and the CFT of the Higgs Branch
• Absorption and Hawking Radiation of Minimal and Fixed Scalars, and AdS/CFT correspondence
• 6d-5d-4d reduction of BPS attractors in flat gauged supergravities
• String Junctions and Bound States of Intersecting Branes
• D1/D5 systems in $\mathcal{N}=4$ string theories
• Black hole dynamics from instanton strings
• A review of the D1/D5 system and five dimensional black hole from supergravity and brane viewpoint
• Lectures on the Microscopic Modeling of the 5-dim. Black Hole of IIB String Theory and the $D_1-D_5$ System