Fractional photon-assisted tunneling of ultra-cold atoms in periodically shaken double-well lattices

Esmann, M.; Pritchard, J.D.; Weiss, C.

Abstract

Fractional photon-assisted tunneling is investigated both numerically and analytically in a double-well lattice. While integer photon-assisted tunneling is a single-particle effect, fractional photon-assisted tunneling is an interaction-induced many-body effect. Double-well lattices with few particles in each double well are ideal to study this effect far from the mean-field effects. It is predicted that the 1/4-resonance is observable in such systems. Fractional photon-assisted tunneling provides a physically relevant model, for which N-th order time-dependent perturbation theory can be large although all previous orders are small. All predicted effects will be observable with an existing experimental setup [1].

Citation

Esmann, M., Pritchard, J., & Weiss, C. (2012). Fractional photon-assisted tunneling of ultra-cold atoms in periodically shaken double-well lattices. Laser Physics Letters, 9(2), https://doi.org/10.1002/lapl.201110109

• Journal Article Type: Article
• Publication Date: Feb 1, 2012
• Deposit Date: Jul 29, 2014
• Publicly Available Date: Oct 31, 2014
• Journal: Laser Physics Letters
• Print ISSN: 1612-2011
• Electronic ISSN: 1612-202X
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 9
• Issue: 2
• DOI: https://doi.org/10.1002/lapl.201110109
• Public URL: https://durham-repository.worktribe.com/output/1422878