Nonlinear conductivity of a holographic superconductor under constant electric field

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Hua Bi Zeng
  • Yu Tian
  • Zheyong Fan
  • Chiang Mei Chen

Organisaatiot

  • Bohai University
  • National Central University
  • Yangzhou University
  • Shanghai Key Laboratory of High Temperature Superconductors
  • University of Chinese Academy of Sciences

Kuvaus

The dynamics of a two-dimensional superconductor under a constant electric field E is studied by using the gauge-gravity correspondence. The pair breaking current induced by E first increases to a peak value and then decreases to a constant value at late times, where the superconducting gap goes to zero, corresponding to a normal conducting phase. The peak value of the current is found to increase linearly with respect to the electric field. Moreover, the nonlinear conductivity, defined as an average of the conductivity in the superconducting phase, scales as similar to E-2/3 when the system is close to the critical temperature T-c, which agrees with predictions from solving the time-dependent Ginzburg-Landau equation. Away from T-c, the E-2/3 scaling of the conductivity still holds when E is large.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli046014
Sivut1-5
Sivumäärä5
JulkaisuPhysical Review D
Vuosikerta95
Numero4
TilaJulkaistu - 23 helmikuuta 2017
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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