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151. 


Green function techniques in the treatment of quantum transport at the molecular scale



D. A. Ryndyk, R. Gutierrez, B. Song, and G. Cuniberti

Springer Series in Chemical Physics 93, pp. 213-335, Springer (2009).

[In ``Energy Transfer Dynamics in Biomaterial Systems''. Edited by I. Burghardt, V. May, D. A. Micha, and E. R. Bittner. Springer Series in Chemical Physics, Springer Verlag, Berlin (2009). ISBN-13: 978-3540724933.]
ISBN: 978-3-642-02305-7

The theoretical investigation of charge (and spin) transport at nanometer length scales requires the use of advanced and powerful techniques able to deal with the dynamical properties of the relevant physical systems, to explicitly include out-of-equilibrium situations typical for electrical/heat transport as well as to take into account interaction effects in a systematic way. Equilibrium Green function techniques and their extension to non-equilibrium situations via the Keldysh formalism build one of the pillars of current state-of-the-art approaches to quantum transport which have been implemented in both model Hamiltonian formulations and first-principle methodologies. We offer a tutorial overview of the applications of Green functions to deal with some fundamental aspects of charge transport at the nanoscale, mainly focusing on applications to model Hamiltonian formulations.



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doi absolute link10.1007/978-3-642-02306-4\_ 9
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online abstractarXiv preprint: 0805.0628
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