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Probing the interaction between Rydberg-dressed atoms through interference

Li, W; Hamadeh, L; Lesanovsky, I; (2012) Probing the interaction between Rydberg-dressed atoms through interference. Physical Review A , 85 (5) , Article 053615. 10.1103/physreva.85.053615. Green open access

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Abstract

We study the dynamics of an atomic Bose-Einstein condensate in an optical lattice in which the electronic ground state of each atom is weakly coupled to a highly excited Rydberg state by a far off-resonant laser. This dressing induces a switchable effective soft-core interaction between ground-state atoms which, in the lattice, gives rise to on-site as well as long-range interaction terms. Upon switching on the dressing laser the coherence properties of the atomic superfluid undergo a nontrivial collapse and revival dynamics which can be observed in the interference pattern that is created after a release of the atoms from the optical lattice. This interference signal strongly depends on the strength and the duration of the dressing laser pulse and can be used to probe and characterize the effective interaction between Rydberg-dressed atoms.

Type: Article
Title: Probing the interaction between Rydberg-dressed atoms through interference
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/physreva.85.053615
Publisher version: https://doi.org/10.1103/PhysRevA.85.053615
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10134008
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