Coulomb-interaction effects in full counting statistics of a quantum-dot Aharonov-Bohm interferometer

Abstract

We study the effect of Coulomb interaction on the full counting statistics of an Aharonov-Bohm (AB) interferometer with a single-level quantum dot in one arm in the regime of weak dot-lead and lead-lead tunnel couplings. In the absence of Coulomb interaction, the interference processes are of nonresonant nature with an even AB flux dependence and obey bidirectional Poissonian statistics. For large charging energy, the statistic of these processes changes. In addition, processes of resonant nature with an odd flux dependence appear. In the limit of strongly asymmetric tunnel couplings from the dot to the left and right leads, their statistics is found to be strongly super-Poissonian.

8 pages, 3 figures

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Cited by in corpus (4)

• Electron-phonon interaction and full counting statistics in molecular junctions
• Tunable dynamical channel blockade in double-dot Aharonov-Bohm interferometers
• Spin-induced charge correlations in transport through interacting quantum dots with ferromagnetic leads
• Interplay between interference and Coulomb interaction in the ferromagnetic Anderson model with applied magnetic field