English

Rotating black holes in the FI-gauged $N=2$, $D=4$ $\overline{\mathbb{C}\text{P}}^n$ model

High Energy Physics - Theory 2019-05-01 v2 General Relativity and Quantum Cosmology

Abstract

We construct supersymmetric black holes with rotation or NUT charge for the CPn\overline{\mathbb{C}\text{P}}^n- and the t3\text{t}^3 model of N=2N=2, D=4D=4 U(1)\text{U}(1) FI-gauged supergravity. The solutions preserve 2 real supercharges, which are doubled for their near-horizon geometry. For the CPn\overline{\mathbb{C}\text{P}}^n model we also present a generalization to the nonextremal case, which turns out to be characterized by a Carter-Pleba\'nski-type metric, and has n+3n+3 independent parameters, corresponding to mass, angular momentum as well as n+1n+1 magnetic charges. We discuss the thermodynamics of these solutions, obtain a Christodoulou-Ruffini mass formula, and shew that they obey a first law of thermodynamics and that the product of horizon areas depends on the angular momentum and the magnetic charges only. At least some of the BPS black holes that we obtain may become instrumental for future microscopic entropy computations involving a supersymmetric index.

Keywords

Cite

@article{arxiv.1902.03113,
  title  = {Rotating black holes in the FI-gauged $N=2$, $D=4$ $\overline{\mathbb{C}\text{P}}^n$ model},
  author = {Nicoletta Daniele and Federico Faedo and Dietmar Klemm and Pedro F. Ramírez},
  journal= {arXiv preprint arXiv:1902.03113},
  year   = {2019}
}

Comments

34 pages, uses jheppub.sty. Final version to appear in JHEP