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. In this talk I will start by constructing the physical vertex operators of these models, and derive their form in the low-energy AdS3 limit. Then, I will show how to use them to 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. I will further present a closed formula for heavy-light correlators with an arbitrary number of light insertions. As an application, these results can be used to compute the analogue of the Hawking radiation rate for these microstates. This talk is based on 2203.13828 (published in PRL) and a companion paper, to appear very soon.
S. Massai
