Tachyon Condensation and Black Hole Entropy

TL;DR

This paper calculates black hole entropy using string theory on a cone geometry, demonstrating that tachyon condensation results align precisely with the classical Bekenstein-Hawking entropy.

Contribution

It introduces a method to compute black hole entropy via string propagation on a conical space, linking tachyon condensation to entropy calculation.

Findings

Entropy from tachyon condensation matches Bekenstein-Hawking entropy

String theory on cones can model black hole thermodynamics

Tachyon dynamics are crucial for understanding black hole entropy

Abstract

String propagation on a cone with deficit angle $2\pi(1-{1\over N})$ is considered for the purpose of computing the entropy of a large mass black hole. The entropy computed using the recent results on condensation of twisted-sector tachyons in this theory is found to be in precise agreement with the Bekenstein-Hawking entropy.