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Semiclassical Theory for Dissipative Tunneling Through a Molecular Wire
Author(s) -
BURIN ALEXANDER L.,
BERLIN YURI A.,
RATNER MARK A.
Publication year - 2002
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2002.tb03038.x
Subject(s) - semiclassical physics , quantum tunnelling , dissipative system , condensed matter physics , physics , wave function , quantum mechanics , electron , amplitude , tunnel effect , chemistry , quantum
A bstract : The exact semiclassical wavefunction for a tunneling electron, coupled to the degrees of freedom of the host medium, is constructed. As a specific application, the result is used to calculate the tunneling amplitude for the electron interacting with a single vibrational mode of the medium. In agreement with previous numerical studies, the tunneling rate is enhanced due to the interaction—stimulated decrease of the tunneling barrier. Several tunneling regimes can be distinguished, depending on the relationship of vibrational frequency and tunneling time.