Magnetic-field influenced non-equilibrium transport through a quantum ring with correlated electrons in a photon cavity

Abstract

We investigate magnetic-field influenced time-dependent transport of Coulomb interacting electrons through a two-dimensional quantum ring in an electromagnetic cavity under non-equilibrium conditions described by a time-convolutionless non-Markovian master equation formalism. We take into account the full electromagnetic interaction of electrons and cavity photons without resorting to the rotating wave approximation or reduction to two levels. A bias voltage is applied to semi-infinite leads along the x-axis, which are connected to the quantum ring. The magnetic field is tunable to manipulate the time-dependent electron transport coupled to a photon field with either x- or y-polarization. We find that the lead-system-lead current is strongly suppressed by the y-polarized photon field at magnetic field with two flux quanta due to a degeneracy of the many-body energy spectrum of the mostly occupied states. Furthermore, the current can be significantly enhanced by the y-polarized field at magnetic field with half integer flux quanta.

References in corpus (12)

• Generalized rotating-wave approximation for arbitrarily large coupling
• Full Counting Statistics in Strongly Interacting Systems: Non-Markovian Effects
• Staying positive: going beyond Lindblad with perturbative master equations
• Fano effect in a ring-dot system with tunable coupling
• Coherent quantum transport in narrow constrictions in the presence of a finite-range longitudinally polarized time-dependent field
• Formulation of Time-Resolved Counting Statistics Based on a Positive-Operator-Valued Measure
• Interaction between Metamaterial Resonators and Inter-subband transitions in Semiconductor Quantum Wells
• Non-Markovian dynamics of a nanomechanical resonator measured by a quantum point contact
• Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo current in a weak magnetic field
• Coherent quantum transport in the presence of a finite-range transversely polarized time-dependent field
• Coherent switching by detuning a side-coupled quantum-dot system
• Magnetotransport in a double quantum wire: Modeling using a scattering formalism built on the Lippmann-Schwinger equation

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• Regimes of radiative and nonradiative transitions in transport through an electronic system in a photon cavity reaching a steady state
• Photon-induced tunability of the thermospin current in a Rashba ring
• Geometry-induced circulation of local photonic transport in a triangular metastructure
• Single-photon controlled thermospin transport in a resonant ring-cavity system
• Generalized Master Equation Approach to Time-Dependent Many-Body Transport
• Excitation spectra of a quantum ring embedded in a photon cavity
• Geometry and linearly polarized cavity photon effects on the charge and spin currents of spin-orbit interacting electrons in a quantum ring
• Excitation of radial collective modes in a quantum dot: Beyond linear response
• Impact of a circularly polarized cavity photon field on the charge and spin flow through an Aharonov-Casher ring
• Geometry-based circulation of local thermal current in quantum harmonic and Bose Hubbard systems
• Transmission of a microwave cavity coupled to localized Shiba states
• Photon and magnetic field controlled electron transport of a multiply-resonant photon-cavity double quantum dot system
• Lamb Shift of Energy Levels in Quantum Rings