Work

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

Year: 2008

Type: article

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.

Source: Physical Review B

DOI: 10.1103/physrevb.78.075318

Authors: Daniel Urban, Jürgen König, Rosario Fazio

Institutions: University of Duisburg-Essen, Ruhr University Bochum, Scuola Internazionale Superiore di Studi Avanzati, Scuola Normale Superiore

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2022541917

FWCI: 2.329

Cites: 83

Cited by: 25

Related to: 10