Black Holes, Holography and Moduli Space Metric

TL;DR

This paper explores the connection between black hole geometries in string theory, holography via Sullivan's Theorem, and the negative curvature of string moduli space, supporting the Vafa conjecture.

Contribution

It demonstrates how Sullivan's Theorem links BTZ geometries to holography and argues for negative curvature in string moduli space based on this relationship.

Findings

BTZ geometry relates to conformal structures via Sullivan's Theorem

String moduli space exhibits negative curvature in certain regions

Supports Vafa's conjecture on moduli space geometry

Abstract

String theory can accommodate black holes with the black hole parameters related to string moduli. It is a well known but remarkable feature that the near horizon geometry of a large class of black holes arising from string theory contains a BTZ part. A mathematical theorem (Sullivan's Theorem) relates the three dimensional geometry of the BTZ metric to the conformal structures of a two dimensional space, thus providing a precise kinematic statement of holography. Using this theorem it is possible to argue that the string moduli space in this region has to have negative curvature from the BTZ part of the associated spacetime. This is consistent with a recent conjecture of Ooguri and Vafa on string moduli space.