Mean-field results on the Anderson impurity model out of equilibrium

Abstract

We investigate the mean-field phase diagram of the Anderson impurity model out of equilibrium. Generalising the unrestricted Hartree-Fock approach to the non-equilibrium situation we derive and analyse the system of equations defining the critical surface separating the magnetic regime from the non-magnetic one. An exact analytic solution for the phase boundary as a function of the applied voltage is found in the symmetric case. Surprisingly, we find that as soon as there is an asymmetry, even small, between the contacts, no finite voltage is able to destroy the magnetic regime which persists at arbitrary high voltages.

4 pages, 2 figures (eps files); to appear in PRB Brief Reports

References in corpus (4)

• The Kondo effect in quantum dots at high voltage: Universality and scaling
• Perturbative Approach to the Nonequilibrium Kondo Effect in a Quantum Dot
• On the perturbative expansion of the magnetization in the out-of-equilibrium Kondo model
• Out-of-equilibrium Anderson model at high and low bias voltages

Cited by in corpus (17)

• Molecular Transport Junctions: Vibrational Effects
• Diagrammatic Monte Carlo simulation of non-equilibrium systems
• Transient dynamics of the Anderson impurity model out of equilibrium
• Inelastic effects in molecular junctions in the Coulomb and Kondo regimes: Nonequilibrium equation-of-motion approach
• Fermi-Edge Resonance and Tunneling in Nonequilibrium Electron Gas
• Interplay of Kondo and superconducting correlations in the nonequilibrium Andreev transport through a quantum dot
• Semiclassical analysis of the Nonequilibrium Local Polaron
• Fluctuation Theorem in a Quantum-Dot Aharonov-Bohm Interferometer
• Non-Equilibrium Quantum Dissipation
• Anderson impurity model in nonequilibrium: analytical results versus quantum Monte Carlo data
• Nonequilibrium transport in quantum impurity models: Exact path integral simulations
• Build-up of the Kondo effect from real-time 2PI effective action for the Anderson impurity model
• Localized magnetic states in Rashba dots
• Full density matrix dynamics for large quantum systems: Interactions, Decoherence and Inelastic effects
• Failure of mean-field approach in out-of-equilibrium Anderson model
• Magnetotransport in Aharonov Bohm interferometers: Exact numerical simulations
• Transport properties of hybrid topological superconductor devices in contact with an environment