Out-of-equilibrium heating of electron liquid: fermionic and bosonic temperatures

Abstract

We investigate out-of-the equilibrium properties of the electron liquid in a two-dimensional disordered superconductor subject to the electric bias and temperature gradient. We calculate kinetic coefficients and Nyquist noise, and find that they are characterized by distinct effective temperatures: $T_{\mathrm{e}}$, characterizing single-particle excitations, $T_{\mathrm{Cp}}$, describing the Cooper pairs, and $T_{\mathrm{eh}}$, corresponding to electron-hole or dipole excitations. Tuning the ratio between the electric $j$ and thermal $j_{\mathrm{th}}$ currents and the boundary conditions one can heat different kind of excitations and control their corresponding temperatures. We propose the experimental setting for determining these effective temperatures.

4 pages, 1 figure

References in corpus (2)

• Hierarchical energy relaxation in mesoscopic tunnel junctions: Effect of nonequilibrium environment on low-temperature transport
• Energy relaxation in the spin-polarized disordered electron liquid

Cited by in corpus (7)

• Stimulation of the fluctuation superconductivity by the PT-symmetry
• Defining the effective temperature of a quantum driven system from current-current correlation functions
• Universal scaling effects of a temperature gradient at first-order transitions
• Out-of-Equilibrium Admittance of Single Electron Box Under Strong Coulomb Blockade
• 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