title: Classical nonlinearity and quantum decay: the effect of classical phase-space structures.
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 that accounts for the numerical results is obtained.
authors.affiliation: Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Ashkenazy
authors.forename: L
authors.initials: L
authors.lastname: Bonci
authors.forename: J
authors.initials: J
authors.lastname: Levitan
authors.forename: R
authors.initials: R
authors.lastname: Roncaglia