Quantum interference in the classically forbidden region: a parametric oscillator

Details Quantum interference in the classically forbidden region: a parametric oscillator Quantum interference in the classically forbidden region: a parametric oscillator

2007-03-18

arxiv.org/abs/cond-mat/0703469v2

Physical Review A 76, 010102 R (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Submitted to PRA

Scientific paper

10.1103/PhysRevA.76.010102

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.

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