Five-dimensional EVH heterotic black holes and its dual IR-CFT

TL;DR

This paper investigates how near-extremal five-dimensional heterotic black holes develop an AdS3 throat, leading to a dual IR conformal field theory description, with implications for understanding black hole microstates.

Contribution

It demonstrates the emergence of an IR CFT in near-extremal 5D heterotic black holes with vanishing horizon area and compares results with c-extremization and Kerr/CFT predictions.

Findings

AdS3 throat forms in near-extremal black holes with vanishing horizon.

Dual IR CFT describes low-energy excitations of these black holes.

Results align with c-extremization and Kerr/CFT frameworks.

Abstract

We analyze the possible dynamical emergence of IR conformal field theory describing the low-energy excitations of near-extremal black holes in five-dimensional compactification of heterotic strings. We find that, by tuning the mass and charges in such a way that the extremal black holes have a classically vanishing horizon area, the near-horizon develops an AdS3 throat and when we combine the low-energy limit with vanishing Newton coupling constant, the system has a dual conformal field theory description. We compare our results with c-extremization and the Kerr/CFT predictions.