Resonance effects in the nonadiabatic nonlinear quantum dimer
D A Institute of Information & Communication Technology (DA-IICT), 382007 Gandhinagar, India
2 Consortium of the Americas for Interdisciplinary Sciences, University of New Mexico, Albuquerque, New Mexico, 87131-1156, USA
3 Department of Physics & Astronomy, University of New Mexico, Albuquerque, New Mexico, 87131-1156, USA
Corresponding author: a firstname.lastname@example.org
Published online: 4 May 2011
The quantum nonlinear dimer consisting of an electron shuttling between 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 initial delocalization of the electron, 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.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2011