Document Detail


Dephasing of electrons in the Aharonov-Bohm interferometer with a single-molecular vibrational junction.
MedLine Citation:
PMID:  23615899     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Phase relaxation of electrons transferring through an electromechanical transistor is studied using the Aharonov-Bohm interferometer. Using the quantum master equation approach, the phase properties of an electron are numerically analyzed based on the interference fringes. The coherence of the electron is partially destroyed by its scattering on excited levels of the local nanomechanical oscillator. The transmission amplitudes with respect to two adjacent mechanical vibrational levels have a phase difference of π. The character of the π phase shift depends on the oscillator frequency only and is robust over a wide range of values of the applied voltage, tunneling length and damping rate of the mechanical oscillator.
Authors:
Wenxi Lai; Yunhui Xing; Zhongshui Ma
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-25
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  25     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  205304     Citation Subset:  -    
Affiliation:
School of Physics, Peking University, Beijing 100871, People's Republic of China.
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