Time-dependent resonant tunneling for a parallel-coupled double quantum dots

Abstract

We derive the quantum rate equations for an Aharonov-Bohm interferometer with two vertically coupled quantum dots embedded in each of two arms by means of the nonequilibrium Green's function in the sequential tunneling regime. Basing on these equations, we investigate time-dependent resonant tunneling under a small amplitude irradiation and find that the resonant photon-assisted tunneling peaks in photocurrent demonstrate a combination behavior of Fano and Lorentzian resonances due to the interference effect between the two pathways in this parallel configuration, which is controllable by threading the magnetic flux inside this device.

8 pages, 5 figures

References in corpus (12)

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• Time-dependent resonant tunneling via two discrete states
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• Quantum rate equations for electron transport through an interacting system in the sequential tunneling regime
• Quantum transport through double-dot Aharonov-Bohm interferometry in Coulomb blockade regime

Cited by in corpus (16)

• Tunable Fano effect in parallel-coupled double quantum dot system
• Interference Effects on Kondo-Assisted Transport through Double Quantum Dots
• Fano Effect through Parallel-coupled Double Coulomb Islands
• A many-body approach to transport in quantum systems: From the transient regime to the stationary state
• First-order coherent resonant tunneling through an interacting coupled-quantum-dot interferometer: generic quantum rate equations and current noise
• Interference through quantum dots
• Beating in electronic transport through quantum dot based devices
• Quantum transport through a double Aharonov-Bohm-interferometer in the presence of Andreev reflection
• Finite-frequency current (shot) noise in coherent resonant tunneling through a coupled-quantum-dot interferometer
• Buildup of Fano resonances in the time domain in a double quantum dot Aharonov-Bohm interferometer
• Transient probing of the symmetry and the asymmetry of electron interference
• Time-dependent quantum transport through an interacting quantum dot beyond sequential tunneling: second-order quantum rate equations
• Well-defined Fano effect in the Andreev reflection process of a parallel double-quantum-dot structure
• Physics at the FQMT'04 conference
• Magnetic-flux-controlled giant Fano factor for the coherent tunneling through a parallel double-quantum-dot
• Coulomb-modified Fano interference in a double quantum dot Aharonov-Bohm ring