Numerical studies of tunneling in a nonharmonic time-dependent potential

Abstract

Azbel' has recently carried out a WKB-analysis of the effects of a nonharmonic time-dependent perturbation embedded in an opaque potential barrier. He suggests the existence of three different transmission regimes: direct tunneling, activation assisted tunneling, and elevator resonant activation. We address the same problem with a numerical technique, and find qualitative agreement with Azbel's picture.

LaTeX document, 15 pages. 4 figures (Fig. 2 comes in 7 pages) in postscript appended to the LaTeX document

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