2008/05/31 by Daniel F. Urban, Daniel Urban, Jürgen König +1
Computer Science · Physics and Astronomy · #Aharonov–Bohm effect #Coulomb #Electron #Interference (communication) #Interferometry #Magnetic field #Physics #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum dot #Quantum electrodynamics #Quantum mechanics #Semiconductor Quantum Structures and Devices #Statistics #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.78.075318
published as Phys. Rev. B 78, 075318 (2008) (8 pages) · 8 pages, 3 figures
openalex publication_date 2008/08/21 · arxiv created 2008/08/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.