Steady-state properties of a thermodynamically unbalanced Fermi gas

Abstract

The current-carrying steady-state that arises in the middle of a metallic wire connected to macroscopic leads is characterized regarding its response functions, correlations and entanglement entropy. The spectral function and the dynamical structure factor show clear non-equilibrium signatures accessible by state-of-the-art techniques. In contrast with the equilibrium case, the entanglement entropy is extensive with logarithmic corrections at zero-temperature that depend on the wire-leads coupling and, in a non-analytic way, on voltage. This shows that some robust universal quantities found in gapless equilibrium phases do not persist away from equilibrium.

5+11 pages, 3+2 figures

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Cited by in corpus (11)

• Temperature driven quenches in the Ising model: appearance of negative Rényi mutual information
• Quantum dynamics of impenetrable SU(N) fermions in one-dimensional lattices
• Extensive Long-Range Entanglement in a Nonequilibrium Steady State
• Entanglement negativity in a nonequilibrium steady state
• Nonequilibrium susceptibility in photoinduced Floquet states
• Spectral and steady-state properties of fermionic random quadratic Liouvillians
• Nonequilibrium phases and phase transitions of the XY-model
• Mixed-order symmetry-breaking quantum phase transition far from equilibrium
• Entanglement Measures in a Nonequilibrium Steady State: Exact Results in One Dimension
• Exact asymptotics of long-range quantum correlations in a nonequilibrium steady state
• Fate of the Quasi-condensed State for Bias-driven Hard-Core Bosons in one Dimension