Semiclassical analysis of quantum localization of the periodically kicked Rydberg atom

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Contributors

Abstract

The periodically kicked Rydberg atom displays quantum localization, features of which depend on the orientation and strength of the unidirectional kicks. They include scarring of the wave function, localization by cantori, and exponential localization in the regime of strong perturbation resembling dynamical localization. Using the semiclassical Herman-Kluk propagator we investigate the degree to which semiclassical dynamics can mimic quantum localization. While the semiclassical approximation has difficulties to reproduce the scarred wave functions, the exponential tail which is a typical signature of the dynamical localization is well represented in the case of strong classical diffusion. Also the localization by broken tori is observed in the semiclassical recurrence probability for short times but the deviation from the corresponding quantum dynamics becomes more pronounced for the long-time evolution.

Details

Original languageEnglish
Article number043410
Number of pages10
JournalPhysical Review A
Volume69
Issue number4
Publication statusPublished - Apr 2004
Peer-reviewedYes

External IDs

WOS 000221276400098
Scopus 2942627347

Keywords

Keywords

  • PHASE-SPACE, DYNAMICAL LOCALIZATION, IONIZATION, APPROXIMATIONS, CHAOS, PROPAGATION, TRANSITIONS, SYSTEMS, SCARS