Schwinger-Keldysh effective action for relativistic Brownian particle in AdS-CFT
High Energy Physics - Theory
2021-10-04 v1 High Energy Physics - Phenomenology
Abstract
We compute Schwinger-Keldysh effective action for a relativistic heavy quark (with constant background velocity) in strongly coupled N = 4 supersymmetric Yang-Mills plasma. The holographic dual description involves a noisy trailing string moving in Schwarzschild-AdS5 black brane. The noise is caused by Hawking radiation emitted from string worldsheet horizon. Besides quadractic terms, the effective action contains cubic interactions, which are entirely induced by the constant background velocity. The nonlinear fluctuation-dissipation relations for three-point functions are discussed based on holographic results.
Keywords
Cite
@article{arxiv.2108.10060,
title = {Schwinger-Keldysh effective action for relativistic Brownian particle in AdS-CFT},
author = {Yanyan Bu and Biye Zhang},
journal= {arXiv preprint arXiv:2108.10060},
year = {2021}
}
Comments
32 pages, 5 figures