Chaotic enhancement of decay. The effect of classical phase space structure

1999/10/21 by Yosef Ashkenazy, Ashkenazy, Yosef, Luca Bonci +5
Physics and Astronomy · #Chaotic Dynamics (nlin.CD) #Condensed Matter (cond-mat) #FOS: Physical sciences #chao-dyn #cond-mat #nlin.CD

paper · pdf · doi:10.48550/arxiv.chao-dyn/9910031

11 pages, 8 figures, uses psfig.sty (better quality figures are available at ftp://telemann.iet.unipi.it/pub/tunnel/)

arxiv created 1999/10/21 · arxiv updated 2009/11/30

Abstract

We investigate the decay process from a time dependent potential well in the semiclassical regime. The classical dynamics is chaotic and the decay rate shows an irregular behavior as a function of the system parameters. By studying the weak-chaos regime we are able to connect the decay irregularities to the presence of nonlinear resonances in the classical phase space. A quantitative analytical prediction which accounts for the numerical results is obtained.

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