Interaction spectroscopy of a two-component Mott insulator
Author(s)
Amato-Grill, Jesse; Jepsen, Niklas; Dimitrova, Ivana; Lunden, William David; Ketterle, Wolfgang
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We prepare and study a two-component Mott insulator of bosonic atoms with two particles per site. The mapping of this system to a magnetic spin model and the subsequent study of its quantum phases require a detailed knowledge of the interaction strengths of the two components. In this work we use radio-frequency transitions and an on-site interaction blockade for precise empirical determination of the interaction strengths of different combinations of hyperfine states on a single lattice site. We create a map of the interactions of the two lowest hyperfine states of ⁷Li as a function of magnetic field, including measurements of several Feshbach resonances with exceptional sensitivity, and we identify promising regions for the realization of magnetic spin models.
Date issued
2019-03Department
Massachusetts Institute of Technology. Research Laboratory of Electronics; Massachusetts Institute of Technology. Department of Physics; MIT-Harvard Center for Ultracold AtomsJournal
Physical Review A
Publisher
American Physical Society (APS)
Citation
Amato-Grill, Jesse et al. "Interaction spectroscopy of a two-component Mott insulator." Physical Review A 99, 3 (March 2019): 033612 © 2019 American Physical Society
Version: Final published version
ISSN
2469-9926
2469-9934