Positive magnetoresistance induced by hydrodynamic fluctuations in chiral media
High Energy Physics - Theory
2021-09-24 v2 Strongly Correlated Electrons
High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We analyze the combined effects of hydrodynamic fluctuations and chiral magnetic effect (CME) for a chiral medium in the presence of a background magnetic field. Based on the recently developed non-equilibrium effective field theory, we show fluctuations give rise to a CME-related positive contribution to magnetoresistance, while the early studies without accounting for the fluctuations find a CME-related negative magnetoresistance. At zero axial relaxation rate, the fluctuations contribute to the transverse conductivity in addition to the longitudinal one.
Keywords
Cite
@article{arxiv.2105.10271,
title = {Positive magnetoresistance induced by hydrodynamic fluctuations in chiral media},
author = {Noriyuki Sogabe and Naoki Yamamoto and Yi Yin},
journal= {arXiv preprint arXiv:2105.10271},
year = {2021}
}
Comments
31 pages, 3 figures, published version