Holographic KMS relations at finite density
High Energy Physics - Theory
2021-04-07 v2
Abstract
We extend the holographic Schwinger-Keldysh prescription introduced in arXiv:1812.08785 to charged black branes, with a view towards studying Hawking radiation in these backgrounds. Equivalently we study real-time fluctuations of the dual CFT held at finite temperature and finite chemical potential. We check our prescription using charged Dirac probe fields. We solve the Dirac equation in a boundary derivative expansion extending the results in arXiv:2011.07039. The Schwinger-Keldysh correlators derived using this prescription automatically satisfy the appropriate KMS relations with Fermi-Dirac factors.
Keywords
Cite
@article{arxiv.2011.08173,
title = {Holographic KMS relations at finite density},
author = {R. Loganayagam and Krishnendu Ray and Shivam K. Sharma and Akhil Sivakumar},
journal= {arXiv preprint arXiv:2011.08173},
year = {2021}
}
Comments
10 pages + 1 figure. v2: minor edits, change in title