English

Comments on AdS_2 Gravity

High Energy Physics - Theory 2014-11-10 v1 General Relativity and Quantum Cosmology

Abstract

We revisit some properties of AdS2_2 Einstein-Maxwell gravity with the aim of reconciling apparently conflicting results in prior literature. We show that the two dimensional theory can be obtained as a dimensional reduction of the three dimensional Einstein gravity with the CSS boundary condition. In general, this theory on AdS2_2 can be viewed as an effective theory of the near horizon geometry of a (near-)extremal black hole. We provide an interpretation of our results in terms of the microscopic description of an extremal black hole.

Keywords

Cite

@article{arxiv.1411.1948,
  title  = {Comments on AdS_2 Gravity},
  author = {Alejandra Castro and Wei Song},
  journal= {arXiv preprint arXiv:1411.1948},
  year   = {2014}
}

Comments

24 pages

R2 v1 2026-06-22T06:51:27.179Z