Supergravity from a Massive Superparticle and the Simplest Super Black Hole

TL;DR

This paper develops a superspace model coupling a massive superparticle with 2D N=1 dilaton supergravity, deriving exact solutions and constructing a supersymmetric black hole, advancing understanding of supergravity and black hole models.

Contribution

It introduces a novel superspace formulation of a superparticle coupled to 2D supergravity and constructs a supersymmetric black hole solution.

Findings

Exact superspace solutions for superparticle and supergravity fields

Construction of a supersymmetric black hole model

Demonstration of mutual influence between superparticle and supergravity

Abstract

We describe in superspace a theory of a massive superparticle coupled to a version of two dimensional N=1 dilaton supergravity. The (1+1) dimensional supergravity is generated by the stress-energy of the superparticle, and the evolution of the superparticle is reciprocally influenced by the supergravity. We obtain exact superspace solutions for both the superparticle worldline and the supergravity fields. We use the resultant non-trivial compensator superfield solution to construct a model of a two-dimensional supersymmetric black hole.