Web-assisted tunneling in the kicked harmonic oscillator

We show that heating of harmonically trapped ions by periodic delta kicks is dramatically enhanced at isolated values of the Lamb-Dicke parameter. At these values, quasienergy eigenstates localized on island structures undergo avoided crossings with extended web states.

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Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 2004-11, Vol.93 (20), p.204101.1-204101.4, Article 204101
Hauptverfasser:	CARVALHO, André R. R, BUCHLEITNER, Andreas
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Exact sciences and technology Fundamental areas of phenomenology (including applications) General and physical chemistry Mechanical effects of light on atoms, molecules, electrons, and ions Nonlinear dynamics and nonlinear dynamical systems Optics Physics Quantum optics Quantum transport Semiclassical chaos ("quantum chaos") Statistical physics, thermodynamics, and nonlinear dynamical systems Theory of reactions, general kinetics Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Transport processes
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Beschreibung
Zusammenfassung:	We show that heating of harmonically trapped ions by periodic delta kicks is dramatically enhanced at isolated values of the Lamb-Dicke parameter. At these values, quasienergy eigenstates localized on island structures undergo avoided crossings with extended web states.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.93.204101