Bridge-mediated Donor-Acceptor Effective Coupling: Exact theoretical description

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dc.creatorBicout, D. J.
dc.creatorVarchon, F.
dc.creatorKats, E.
dc.date2005-02-09
dc.date.accessioned2026-07-07T03:03:40Z
dc.date.available2026-07-07T03:03:40Z
dc.descriptionAn exact expression of the bridge-mediated donor-acceptor effective coupling, is derived. For systems represented by a tight-binding Hamiltonian with nearest-neighbor interactions, we show that the effective coupling, is equal to the product over all square of nearest-neighbor couplings divided by an appropriate product of level spacing of eigen energies of the Hamiltonian. Results of this calculation are compared to those obtained by perturbative approaches and some drawbacks of the latter are pointed out.
dc.description4 pages, submitted to Europhysics Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0502242
dc.identifierhttp://arxiv.org/abs/cond-mat/0502242
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25841
dc.subjectSoft Condensed Matter
dc.subjectMesoscale and Nanoscale Physics
dc.titleBridge-mediated Donor-Acceptor Effective Coupling: Exact theoretical description
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