Species-selective confinement of atoms dressed with multiple radiofrequencies. (18th April 2017)

• Record Type: Journal Article
• Authors: Bentine, E; Harte, T L; Luksch, K; Barker, A J; Mur-Petit, J; Yuen, B; Foot, C J
• Is Part Of: Journal of physics. Volume 50:Number 9(2017:May 01)
• Publication Date: 2017-04-18
• Subjects: ultracold gases -- boson mixtures -- species-selective trapping -- Bose–Einstein condensation -- rf-dressed potentials; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/aa67ce
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: Methods to manipulate the individual constituents of an ultracold quantum gas mixture are essential tools for a number of applications, such as the direct quantum simulation of impurity physics. We investigate a scheme in which species-selective control is achieved using magnetic potentials dressed with multiple radiofrequencies, exploiting the different Landé g F -factors of the constituent atomic species. We describe a mixture dressed with two frequencies, where atoms are confined in harmonic potentials with a controllable degree of overlap between the two atomic species. This is then extended to a four radiofrequency scheme in which a double well potential for one species is overlaid with a single well for the other. The discussion is framed with parameters that are suitable for a 85 Rb and 87 Rb mixture, but is readily generalised to other combinations.