Positive magnetoresistance induced by hydrodynamic fluctuations in chiral media

Noriyuki Sogabe, Naoki Yamamoto, Yi Yin

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number131
JournalJournal of High Energy Physics
Volume2021
Issue number9
DOIs
Publication statusPublished - 2021 Sep

Keywords

  • Anomalies in Field and String Theories
  • Effective Field Theories
  • Topological States of Matter

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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