Resonance Effects in the Nonadiabatic Nonlinear Quantum Dimer
arXiv:1008.3744 · doi:10.1140/epjb/e2011-10982-7
Abstract
The quantum nonlinear dimer consisting of an electron shuttling between the two sites and in weak interaction with vibrations, is studied numerically under the application of a DC electric field. A field-induced resonance phenomenon between the vibrations and the electronic oscillations is found to influence the electronic transport greatly. For initially delocalization of the electron, the resonance has the effect of a dramatic increase in the transport. Nonlinear frequency mixing is identified as the main mechanism that influences transport. A characterization of the frequency spectrum is also presented.
7 pages, 6 figures