Nonequilibrium mesoscopic superconductors in a fluctuational regime

Abstract

We show that there exist a class of nonequilibrium systems for which a non-equilibrium analog of the Ginzburg-Landau (GL) functional can be constructed and propose the procedure for its derivation. As an example, we consider a small superconductor island of the size less than the coherence length in a stationary nonequlibrium state. We find the GL expansion of the free energy functional of such a system and analyze the dependence of the coefficients of the expansion upon the external drive and the non-equilibrium distribution functions.

5 pages, 1 figure

References in corpus (5)

• Keldysh Ginzburg-Landau action of fluctuating superconductors
• Bi-stability in voltage-biased NISIN structures
• Zero-Dimensional Superconducting Fluctuations and Fluctuating Diamagnetism in Lead Nanoparticles
• Anomalous Behavior near T_c and Synchronization of Andreev Reflection in Two-Dimensional Arrays of SNS Junctions
• Symmetric and asymmetric states in mesoscopic superconducting wire in voltage driven regime

Cited by in corpus (8)

• Stimulation of the fluctuation superconductivity by the PT-symmetry
• Defining the effective temperature of a quantum driven system from current-current correlation functions
• Scaling Universality at the Dynamic Vortex Mott Transition
• Onset of superconductivity in a voltage-biased NSN microbridge
• Pairing Fluctuation AC Conductivity of Disordered Thin Films
• Far-from-equilibrium superconductor in fluctuational regime
• Fluctuation-induced noise in out-of-equilibrium disordered superconducting films
• Critical behavior at the dynamic Mott transition