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Aharonov-Bohm oscillations and resonant tunneling in strongly correlated quantum dots

C. Bruder·Rosario Fazio·Herbert Schoeller
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Abstract

We investigate Aharonov-Bohm oscillations of the current through a strongly correlated quantum dot embedded in an arbitrary scattering geometry. Resonant-tunneling processes lead to a flux-dependent renormalization of the dot level. As a consequence we obtain a fine structure of the current oscillations which is controlled by quantum fluctuations. Strong Coulomb repulsion leads to a continuous bias voltage dependent phase shift and, in the nonlinear response regime, destroys the symmetry of the differential conductance under a sign change of the external flux.

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C. Bruder, Rosario Fazio, Herbert Schoeller. 1995-11-24. Aharonov-Bohm oscillations and resonant tunneling in strongly correlated quantum dots. https://doi.org/10.1103/physrevlett.76.114

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