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Quantum interference structures in trapped-ion dynamics beyond the Lamb-Dicke and rotating wave approximations
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry.
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2008 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 77, no 5, 053808-1-053808-11 p.Article in journal (Refereed) Published
Abstract [en]

We apply wave-packet methods to study an ion-trap system imposing neither the rotating wave nor the Lamb-Dicke approximations. By this approach we show the existence of states with restricted phase-space evolution as a genuine consequence of quantum interference between wave-packet fractions. A particular instance of such a state oscillates between maximal entanglement and pure disentanglement between the constitute subsystems, where the characteristic crossover time is very rapid. Over longer time periods the dynamics of these states exhibits collapse-revival patterns with well-resolved fractional revivals in autocorrelation, inversion, and entanglement.

Place, publisher, year, edition, pages
2008. Vol. 77, no 5, 053808-1-053808-11 p.
National Category
Chemical Sciences
URN: urn:nbn:se:uu:diva-110014DOI: 10.1103/PhysRevA.77.053808ISI: 000257024100043OAI: oai:DiVA.org:uu-110014DiVA: diva2:275018
Available from: 2009-11-02 Created: 2009-11-02 Last updated: 2012-01-02Bibliographically approved

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Karlsson, Hans O.
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Quantum Chemistry
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