English

A black hole solution in conformal supergravity

High Energy Physics - Theory 2023-01-09 v2 General Relativity and Quantum Cosmology

Abstract

We present a three-parameter family of analytic black-hole solutions in the bosonic sector of a four-dimensional supersymmetric model with matter fields in the adjoint representation. The solutions are endowed with curvature and torsional singularities which are both surrounded by an event horizon. They are asymptotically Lorentz flat, representing the torsional generalization of the Riegert black hole in conformal gravity. We compute the partition function to first order in the saddle-point approximation which turns out to be finite without any reference to boundary counterterms. We find a non-maximmally symmetric thermalized ground state, whose existence is relevant when studying Hawking-Page phase transitions. Finally, we discuss future directions regarding its extended phase space.

Keywords

Cite

@article{arxiv.2211.15585,
  title  = {A black hole solution in conformal supergravity},
  author = {Pedro D. Alvarez and Cristóbal Corral and Jorge Zanelli},
  journal= {arXiv preprint arXiv:2211.15585},
  year   = {2023}
}

Comments

v1: 17 pages; v2: Comments and references added, 18 pages, Accepted for publication in JHEP

R2 v1 2026-06-28T07:15:23.087Z