Nonlinear transport in a two dimensional holographic superconductor
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2016-06-16
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Mcode
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Language
en
Pages
1-5
Series
PHYSICAL REVIEW D, Volume 93, issue 12
Abstract
The problem of nonlinear transport in a two-dimensional superconductor with an applied oscillating electric field is solved by the holographic method. The complex conductivity can be computed from the dynamics of the current for both the near- and nonequilibrium regimes. The limit of weak electric field corresponds to the near-equilibrium superconducting regime, where the charge response is linear and the conductivity develops a gap determined by the condensate. A larger electric field drives the system into a superconducting nonequilibrium steady state, where the nonlinear conductivity is quadratic with respect to the electric field. Increasing the amplitude of the applied electric field results in a far-from-equilibrium nonsuperconducting steady state with a universal linear conductivity of one. In the lower temperature regime we also find chaotic behavior of the superconducting gap, which results in a nonmonotonic field-dependent nonlinear conductivity.Description
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Citation
Zeng , H B , Tian , Y , Fan , Z & Chen , C M 2016 , ' Nonlinear transport in a two dimensional holographic superconductor ' , Physical Review D , vol. 93 , no. 12 , 121901 , pp. 1-5 . https://doi.org/10.1103/PhysRevD.93.121901
