Quantum interference in the classically forbidden region: a parametric oscillator
Mesoscale and Nanoscale Physics
2011-04-19 v2 Superconductivity
Quantum Physics
Abstract
We study tunneling between period two states of a parametrically modulated oscillator. The tunneling matrix element is shown to oscillate with the varying frequency of the modulating field. The effect is due to spatial oscillations of the wave function and the related interference in the classically forbidden region. The oscillations emerge already in the ground state of the oscillator Hamiltonian in the rotating frame, which is quartic in the momentum.
Cite
@article{arxiv.cond-mat/0703469,
title = {Quantum interference in the classically forbidden region: a parametric oscillator},
author = {M. Marthaler and M. I. Dykman},
journal= {arXiv preprint arXiv:cond-mat/0703469},
year = {2011}
}
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