Semiclassical mechanism for the quantum decay in open chaotic systems

Daniel Waltner, Martha Gutiérrez, Arseni Goussev, Klaus Richter

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We address the decay in open chaotic quantum systems and calculate semiclassical corrections to the classical exponential decay. We confirm random matrix predictions and, going beyond, calculate Ehrenfest time effects. To support our results we perform extensive numerical simulations. Within our approach we show that certain (previously unnoticed) pairs of interfering, correlated classical trajectories are of vital importance. They also provide the dynamical mechanism for related phenomena such as photoionization and photodissociation, for which we compute cross-section correlations. Moreover, these orbits allow us to establish a semiclassical version of the continuity equation.
Original languageEnglish
JournalPhysical Review Letters
Volume101
Issue number17
DOIs
Publication statusPublished - 2008

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