Worldsheet Correlators in Black Hole Microstates

TL;DR

This paper constructs vertex operators for black hole microstates, computes novel correlators, and matches them with dual CFT results, providing insights into black hole microstructure and Hawking radiation.

Contribution

It introduces an exact worldsheet description for a family of black hole microstates and derives their correlators, bridging string theory and holography in a new way.

Findings

First match between worldsheet correlators and dual CFT in microstates

Derived a closed formula for heavy-light correlators with multiple light insertions

Computed Hawking radiation analogue for microstates

Abstract

Light probes interacting with heavy bound states such as black holes give rise to interesting observables containing valuable dynamical information. Recently, a family of black hole microstates was shown to admit an exact string worldsheet description. We construct the physical vertex operators of these models, and derive their form in the low-energy AdS$_3$ limit. We then compute an extensive set of novel heavy-light correlators in these backgrounds. A subset of these provide the first match between worldsheet correlators in black hole microstates and the holographically dual conformal field theory, in a highly non-trivial way. We further conjecture a closed formula for heavy-light correlators with an arbitrary number of light insertions. As an application, we compute the analogue of the Hawking radiation rate for these microstates.