Horizon Strings as 3d Black Hole Microstates

TL;DR

This paper proposes that 3d black hole microstates can be modeled as tensionless null string states with non-zero winding, and demonstrates that their statistical counting reproduces the black hole entropy and quantum corrections.

Contribution

It introduces a novel microstate model for 3d black holes using tensionless null strings, matching entropy calculations.

Findings

Partition function matches Bekenstein-Hawking entropy

Reproduces semiclassical logarithmic corrections

Microstate combinatorics align with black hole thermodynamics

Abstract

We propose that 3d black holes are an ensemble of tensionless null string states. These microstates typically have non-zero winding. We evaluate their partition function in the limit of large excitation numbers and show that their combinatorics reproduces the Bekenstein-Hawking entropy and its semiclassical logarithmic corrections.