General 2 charge geometries

TL;DR

This paper constructs new horizon-free supergravity geometries in the NS1-P system, incorporating fermionic and bosonic condensates, to better understand black hole microstates and account for microscopic entropy.

Contribution

It introduces a novel class of geometries with fermionic and bosonic condensates in the NS1-P system, expanding the understanding of black hole microstates.

Findings

New geometries account for full microscopic entropy.

Geometries include both fermionic and bosonic condensates.

Brief discussion of dual D1-D5 system geometries.

Abstract

Two charge BPS horizon free supergravity geometries are important in proposals for understanding black hole microstates. In this paper we construct a new class of geometries in the NS1-P system, corresponding to solitonic strings carrying fermionic as well as bosonic condensates. Such geometries are required to account for the full microscopic entropy of the NS1-P system. We then briefly discuss the properties of the corresponding geometries in the dual D1-D5 system.