Holographic chiral electric separation effect

Shi Pu, Shang Yu Wu, Di-Lun Yang

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We investigate the chiral electric separation effect, where an axial current is induced by an electric field in the presence of both vector and axial chemical potentials, in a strongly coupled plasma via the Sakai-Sugimoto model with a U(1)R×U(1)L symmetry. By introducing different chemical potentials in U(1)R and U(1)L sectors, we compute the axial direct current (DC) conductivity stemming from the chiral current and the normal DC conductivity. We find that the axial conductivity is approximately proportional to the product of the axial and vector chemical potentials for arbitrary magnitudes of the chemical potentials. We also evaluate the axial alternating current (AC) conductivity induced by a frequency-dependent electric field, where the oscillatory behavior with respect to the frequency is observed.

Original languageEnglish
Article number085024
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number8
DOIs
Publication statusPublished - 2014 Apr 10
Externally publishedYes

Fingerprint

conductivity
direct current
strongly coupled plasmas
electric fields
alternating current
sectors
symmetry
products

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Holographic chiral electric separation effect. / Pu, Shi; Wu, Shang Yu; Yang, Di-Lun.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 89, No. 8, 085024, 10.04.2014.

Research output: Contribution to journalArticle

@article{ce6912d43ab2437395fa57b8a11caacf,
title = "Holographic chiral electric separation effect",
abstract = "We investigate the chiral electric separation effect, where an axial current is induced by an electric field in the presence of both vector and axial chemical potentials, in a strongly coupled plasma via the Sakai-Sugimoto model with a U(1)R×U(1)L symmetry. By introducing different chemical potentials in U(1)R and U(1)L sectors, we compute the axial direct current (DC) conductivity stemming from the chiral current and the normal DC conductivity. We find that the axial conductivity is approximately proportional to the product of the axial and vector chemical potentials for arbitrary magnitudes of the chemical potentials. We also evaluate the axial alternating current (AC) conductivity induced by a frequency-dependent electric field, where the oscillatory behavior with respect to the frequency is observed.",
author = "Shi Pu and Wu, {Shang Yu} and Di-Lun Yang",
year = "2014",
month = "4",
day = "10",
doi = "10.1103/PhysRevD.89.085024",
language = "English",
volume = "89",
journal = "Physical review D: Particles and fields",
issn = "1550-7998",
publisher = "American Institute of Physics",
number = "8",

}

TY - JOUR

T1 - Holographic chiral electric separation effect

AU - Pu, Shi

AU - Wu, Shang Yu

AU - Yang, Di-Lun

PY - 2014/4/10

Y1 - 2014/4/10

N2 - We investigate the chiral electric separation effect, where an axial current is induced by an electric field in the presence of both vector and axial chemical potentials, in a strongly coupled plasma via the Sakai-Sugimoto model with a U(1)R×U(1)L symmetry. By introducing different chemical potentials in U(1)R and U(1)L sectors, we compute the axial direct current (DC) conductivity stemming from the chiral current and the normal DC conductivity. We find that the axial conductivity is approximately proportional to the product of the axial and vector chemical potentials for arbitrary magnitudes of the chemical potentials. We also evaluate the axial alternating current (AC) conductivity induced by a frequency-dependent electric field, where the oscillatory behavior with respect to the frequency is observed.

AB - We investigate the chiral electric separation effect, where an axial current is induced by an electric field in the presence of both vector and axial chemical potentials, in a strongly coupled plasma via the Sakai-Sugimoto model with a U(1)R×U(1)L symmetry. By introducing different chemical potentials in U(1)R and U(1)L sectors, we compute the axial direct current (DC) conductivity stemming from the chiral current and the normal DC conductivity. We find that the axial conductivity is approximately proportional to the product of the axial and vector chemical potentials for arbitrary magnitudes of the chemical potentials. We also evaluate the axial alternating current (AC) conductivity induced by a frequency-dependent electric field, where the oscillatory behavior with respect to the frequency is observed.

UR - http://www.scopus.com/inward/record.url?scp=84898669921&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898669921&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.89.085024

DO - 10.1103/PhysRevD.89.085024

M3 - Article

VL - 89

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 8

M1 - 085024

ER -