Nonlinear transport in a two dimensional holographic superconductor

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105494

Title:	Nonlinear transport in a two dimensional holographic superconductor
Authors:	陳江梅;Zeng, Hua Bi;Tian, Yu;Fan, Zhe Yong;Chen, Chiang-Mei
Contributors:	理學院物理學系
Keywords:	Dynamical systems;Electric fields;Nonlinear dynamics;Nonlinearity;Steady state;Superconductivity;Superconductors;Transport
Date:	2016-06-16
Issue Date:	2026-04-23 12:31:24 (UTC+8)
Abstract:	摘要： 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. 出版日期： 2016-06-16 出處： Physical review. D, 2016-06, Vol.93 (12), Article 121901 識別號： ISSN: 2470-0010 識別號： ISSN: 2470-0037 識別號： ISSN: 2470-0029 識別號： EISSN: 2470-0029 識別號： DOI: 10.1103/PhysRevD.93.121901
Appears in Collections:	[Department of Physics] journal & Dissertation

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