Time-dependent wave packet simulations of transport through Aharanov-Bohm rings with an embedded quantum dot

Abstract

We have performed time-dependent wave packet simulations of realistic Aharonov-Bohm (AB) devices with a quantum dot embedded in one of the arms of the interferometer. The AB ring can function as a measurement device for the intrinsic transmission phase through the quantum dot, however, care has to be taken in analyzing the influence of scattering processes in the junctions of the interferometer arms. We consider a harmonic quantum dot and show how the Darwin-Fock spectrum emerges as a unique pattern in the interference fringes of the AB oscillations.

17 pages, 5 figures. Published version

References in corpus (6)

• Magnetic field dependent transmission phase of a double dot system in a quantum ring
• Mesoscopic to universal crossover of transmission phase of multi-level quantum dots
• Transmission phase of a singly occupied quantum dot in the Kondo regime
• Kondo Effect in a Many-Electron Quantum Ring
• Level-occupation switching of the Quantum Dot, and phase anomalies in mesoscopic interferometry
• Low-temperature behavior of transmission phase shift across a Kondo correlated quantum dot