Realising a species-selective double well with multiple-radiofrequency-dressed potentials

• Published in: arXiv.org
• Main Authors: Barker, A J, Sunami, S, Garrick, D, Beregi, A, Luksch, K, Bentine, E, Foot, C J
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 09.07.2020
• Subjects: Physics - Atomic Physics; Physics - Quantum Gases; Radio frequency
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2003.05925

Techniques to manipulate the individual constituents of an ultracold mixture are key to investigating impurity physics. In this work, we confine a mixture of the hyperfine ground states of Rb-87 in a double-well potential. The potential is produced by dressing the atoms with multiple radiofrequencies. The amplitude and phase of each frequency component of the dressing field are individually controlled to independently manipulate each species. Furthermore, we verify that our mixture of hyperfine states is collisionally stable, with no observable inelastic loss.