### 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 language | English |
---|---|

Article number | 085024 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 89 |

Issue number | 8 |

DOIs | |

Publication status | Published - 2014 Apr 10 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*89*(8), [085024]. https://doi.org/10.1103/PhysRevD.89.085024

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

Research output: Contribution to journal › Article

*Physical Review D - Particles, Fields, Gravitation and Cosmology*, vol. 89, no. 8, 085024. https://doi.org/10.1103/PhysRevD.89.085024

}

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

AN - SCOPUS:84898669921

VL - 89

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 8

M1 - 085024

ER -