Cosmological Supergravity from a Massive Superparticle and Super Cosmological Black Holes

TL;DR

This paper develops a superspace formulation of two-dimensional (1,1) dilaton supergravity with a cosmological constant, providing exact solutions and constructing models of supersymmetric cosmological black holes.

Contribution

It introduces a classical superspace framework for 2D dilaton supergravity with cosmological constant and constructs supersymmetric black hole models using exact solutions.

Findings

Exact superspace solutions for the supergravity compensator

Construction of supersymmetric cosmological black hole models

Framework applicable with and without coupling to a superparticle

Abstract

We describe in superspace a classical theory of two dimensional $(1,1)$ dilaton supergravity with a cosmological constant, both with and without coupling to a massive superparticle. We give general exact non-trivial superspace solutions for the compensator superfield that describes the supergravity in both cases. We then use these compensator solutions to construct models of two-dimensional supersymmetric cosmological black holes.