Quantum dynamics of one and two bosonic atoms in a combined tight-binding periodic and weak parabolic potential

Manuel Valiente Cifuentes, D. Petrosyan

Research output: Contribution to journalArticle

Abstract

Strongly interacting bosonic particles in a tight-binding periodic potential superimposed by a weak parabolic trap is a paradigm for many cold atom experiments. Here, after revisiting the single-particle problem, we study interaction-bound dimers of bosonic atoms in the combined lattice and parabolic potential. We consider both repulsively and attractively bound dimers and find pronounced differences in their behaviour. We identify conditions under which attractive and repulsive dimers exhibit analogous dynamics. Our studies reveal that coherent transport and periodic oscillations of appropriately prepared one- and two-atom wave packets can be achieved, which may facilitate information transfer in optical-lattice-based quantum computation schemes. Copyright (C) EPLA, 2008.

Original languageEnglish
Article number30007
Number of pages6
JournalEurophysics Letters
Volume83
Issue number3
DOIs
Publication statusPublished - 18 Jul 2008

Keywords

  • OPTICAL LATTICES

Cite this

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Quantum dynamics of one and two bosonic atoms in a combined tight-binding periodic and weak parabolic potential. / Valiente Cifuentes, Manuel; Petrosyan, D.

In: Europhysics Letters, Vol. 83, No. 3, 30007, 18.07.2008.

Research output: Contribution to journalArticle

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AU - Petrosyan, D.

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AB - Strongly interacting bosonic particles in a tight-binding periodic potential superimposed by a weak parabolic trap is a paradigm for many cold atom experiments. Here, after revisiting the single-particle problem, we study interaction-bound dimers of bosonic atoms in the combined lattice and parabolic potential. We consider both repulsively and attractively bound dimers and find pronounced differences in their behaviour. We identify conditions under which attractive and repulsive dimers exhibit analogous dynamics. Our studies reveal that coherent transport and periodic oscillations of appropriately prepared one- and two-atom wave packets can be achieved, which may facilitate information transfer in optical-lattice-based quantum computation schemes. Copyright (C) EPLA, 2008.

KW - OPTICAL LATTICES

U2 - 10.1209/0295-5075/83/30007

DO - 10.1209/0295-5075/83/30007

M3 - Article

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JO - Europhysics Letters

JF - Europhysics Letters

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