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Charge-memory effect in a polaron model: equation-of-motion method for Green functions

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D'Amico, Pino ; Ryndyk, Dmitry ; Cuniberti, Gianaurelio ; Richter, Klaus
License: Creative Commons: Attribution-Noncommercial-Share Alike 3.0
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PDF - Submitted Version
arXiv PDF (10.06.2008)
Date of publication of this fulltext: 05 Aug 2009 13:57


We analyze a single-level quantum system placed between metallic leads and strongly coupled to a localized vibrational mode, which can be thought as a model for a single-molecule junction or an STM setup. We consider a polaron model describing the interaction between electronic and vibronic degrees of freedom and develop and examine different truncation schemes in the equation-of-motion method ...


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