TY - JOUR
T1 - Positive magnetoresistance induced by hydrodynamic fluctuations in chiral media
AU - Sogabe, Noriyuki
AU - Yamamoto, Naoki
AU - Yin, Yi
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/9
Y1 - 2021/9
N2 - 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.
AB - 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.
KW - Anomalies in Field and String Theories
KW - Effective Field Theories
KW - Topological States of Matter
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U2 - 10.1007/JHEP09(2021)131
DO - 10.1007/JHEP09(2021)131
M3 - Article
AN - SCOPUS:85115226363
SN - 1126-6708
VL - 2021
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 9
M1 - 131
ER -