Is the quantum dot at large bias a weak-coupling problem?

Abstract

We examine the two-lead Kondo model for a d.c. biased quantum dot in the Coulomb blockade regime. From perturbative calculations of the magnetic susceptibility, we show that the problem retains its strong-coupling nature, even at bias voltages larger than the equilibrium Kondo temperature. We give a speculative discussion of the nature of the renormalization group flows and the strong-coupling state that emerges at large voltage bias.

Four pages with embedded figures; references added; minor changes to the text

Cited by in corpus (41)

• Non-Equilibrium Transport through a Kondo-Dot in a Magnetic Field: Perturbation Theory and Poor Man's Scaling
• A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)
• The Kondo effect in quantum dots at high voltage: Universality and scaling
• Nonequilibrium spintronic transport through an artificial Kondo impurity: Conductance, magnetoresistance and shot noise
• Scaling and Decoherence in the Out-of-Equilibrium Kondo Model
• Universal aspects of non-equilibrium currents in a quantum dot
• Charge transport through single molecules, quantum dots, and quantum wires
• Interference in interacting quantum dots with spin
• Probing the Kondo density of states in a three-terminal quantum ring
• Nonequilibrium Transport through a Kondo Dot: Decoherence Effects
• Auxiliary master equation approach within matrix product states: Spectral properties of the nonequilibrium Anderson impurity model
• Kondo memory in driven strongly-correlated quantum dots
• Fermi-Edge Resonance and Tunneling in Nonequilibrium Electron Gas
• Kondo effect in coupled quantum dots: a Non-crossing approximation study
• On the perturbative expansion of the magnetization in the out-of-equilibrium Kondo model
• Real-time renormalization group in frequency space: A 2-loop analysis of the nonequilibrium anisotropic Kondo model at finite magnetic field
• Anderson Model out of equilibrium: decoherence effects in transport through a quantum dot
• Three-terminal transport through a quantum dot in the Kondo regime: Conductance, dephasing, and current-current correlations
• Spin dynamics from Majorana fermions
• Normal and anomalous solitons in the theory of dynamical Cooper pairing
• Real-time renormalization group and cutoff scales in nonequilibrium applied to an arbitrary quantum dot in the Coulomb blockade regime
• Non-equilibrium Kondo effect in asymmetrically coupled quantum dot
• Anderson impurity model in nonequilibrium: analytical results versus quantum Monte Carlo data
• Quantum Criticality out of Equilibrium: Steady State in a Magnetic Single-Electron Transistor
• Non-Equilibrium Kondo Model with Voltage Bias in a Magnetic Field
• Kondo Resonance Decoherence by an External Potential
• Theory of the non-equilibrium quasiparticle distribution induced by Kondo defects
• Out-of-equilibrium Anderson model at high and low bias voltages
• Nonequilibrium perturbation theory of the spinless Falicov-Kimball model
• Steady-state spectra, current and stability diagram of a quantum dot: a non-equilibrium Variational Cluster Approach
• Non-Equilibrium Scaling Analysis of the Kondo Model with Voltage Bias
• Dynamical 1/N approach to time-dependent currents through quantum dots
• Orbital fluctuations and strong correlations in quantum dots
• Aharonov-Bohm magnetization of mesoscopic rings caused by inelastic relaxation
• Mixed-state aspects of an out-of-equilibrium Kondo problem in a quantum dot
• Current induced decoherence in the multichannel Kondo problem
• Oscillatory instabilities in d.c. biased quantum dots
• Kondo Effects in Quantum Dots at Large Bias
• Electronic Green's functions in a T-shaped multi-quantum dot system
• Quantum Reciprocity Conjecture for the Non-Equilibrium Steady State
• Energy relaxation due to magnetic impurities in mesoscopic wires: Logarithmic approach