Microscopic Description of Black Rings in AdS/CFT

TL;DR

This paper explores the microscopic structure of BPS black rings in AdS/CFT, proposing a dual CFT description that separates supertube-like features from entropy, and relates the geometry to 4D black holes.

Contribution

It introduces a novel microscopic description of black rings within the D1-D5-P CFT framework, splitting the CFT into parts for supertube properties and entropy.

Findings

CFT effectively splits into two parts for rings

Black ring entropy related to 4D BPS black holes

Proposes a microscopic model matching geometric features

Abstract

We discuss some aspects of the recently discovered BPS black ring solutions in terms of the AdS/CFT correspondence. In the type IIB frame in which the black ring carries the charges of the D1-D5-P system, we propose a microscopic description of the rings in the orbifold CFT governing this system. In our proposal, the CFT effectively splits into two parts: one part captures the supertube-like properties of the ring, and the other captures the entropy. We can also understand the black ring entropy by relating the geometry near the ring to BPS black holes in four dimensions, although this latter approach does not directly lead to an identification of black rings in terms of the D1-D5-P CFT.