2001/12/31 by Colin Benjamin, A. M. Jayannavar · 4 citations
Computer Science · Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum Information and Cryptography #Quantum and electron transport phenomena #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physrevb.65.153309
published as Phys. Rev. B 65, 153309 (2002). · 4 pages, 4 figures Minor corrections made and journal reference added
openalex publication_date 2002/03/29 · arxiv created 2002/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The Aharonov-Bohm ring has been the mainstay of mesoscopic physics research since its inception. In this paper we deal with the problem of dephasing of Aharonov-Bohm (AB) oscillations using a phenomenological model based on stochastic absorption. To calculate the conductance in the presence of inelastic scattering we have used the method due to Brouwer and Beenakker. We have shown that conductance is symmetric under flux reversal and visibility of AB oscillations decay to zero as a function of the incoherence parameter thus signaling dephasing in the system. Some comments are made on the relative merits of stochastic absorption with respect to optical potential model, which have been used to mimic dephasing.