Laser assisted tunneling in a Tonks–Girardeau gas

Lelas, Karlo and Drpić, Nikola and Dubček, Tena and Jukić, Dario and Pezer, Robert and Buljan, Hrvoje (2016) Laser assisted tunneling in a Tonks–Girardeau gas. New Journal of Physics, 18. pp. 95002-9. ISSN 1367-2630

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Abstract

We investigate the applicability of laser assisted tunneling in a strongly interacting one-dimensional (1D) Bose gas (the Tonks– Girardeau gas) in optical lattices. We find that the stroboscopic dynamics of the Tonks–Girardeau gas in a continuous Wannier–Stark- ladder potential, supplemented with laser assisted tunneling, effectively realizes the ground state of 1D hard-core bosons in a discrete lattice with nontrivial hopping phases. We compare observables that are affected by the interactions, such as the momentum distribution, natural orbitals and their occupancies, in the time-dependent continuous system, to those of the ground state of the discrete system. Stroboscopically, we find an excellent agreement, indicating that laser assisted tunneling is a viable technique for realizing novel ground states and phases with hard- core 1D Bose gases.

Item Type: Article
Keywords: synthetic gauge fields ; optical lattices ; hard core bosons
Date: 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaf. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 5 June 2016. Revised 18 July 2016. Accepted for publication 2 August 2016. Published 6 September 2016.
Divisions: Faculty of Science > Department of Physics
Project code: ZCI QuantiXLie
Publisher: IOP Institute of Physics
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 02 Nov 2017 15:11
Last Modified: 02 Nov 2017 15:15
URI: http://digre.pmf.unizg.hr/id/eprint/5659

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