English

Supersymmetric spacetimes in 2+1 adS-supergravity models

General Relativity and Quantum Cosmology 2010-04-06 v1 High Energy Physics - Theory

Abstract

We find a class of (2+1)-dimensional spacetimes admitting Killing spinors appropriate to (2,0) adS-supergravity. The vacuum spacetimes include anti-de Sitter (adS) space and charged extreme black holes, but there are many others, including spacetimes of arbitrarily large negative energy that have only conical singularities, and the spacetimes of fractionally charged point particles. The non-vacuum spacetimes are those of self-gravitating solitons obtained by coupling (2,0) adS supergravity to sigma-model matter. We show, subject to a condition on the matter currents (satisfied by the sigma model), and a conjecture concerning global obstructions to the existence of certain types of spinor fields, that the mass of each supersymmetric spacetime saturates a classical bound, in terms of the angular momentum and charge, on the total energy of arbitrary field configurations with the same boundary conditions, although these bounds may be violated quantum mechanically.

Keywords

Cite

@article{arxiv.gr-qc/9501018,
  title  = {Supersymmetric spacetimes in 2+1 adS-supergravity models},
  author = {J. M. Izquierdo and P. K. Townsend},
  journal= {arXiv preprint arXiv:gr-qc/9501018},
  year   = {2010}
}

Comments

47 pages, phyzzx.tex, no figures.

R2 v1 2026-07-22T12:49:52.008Z