Interaction spectroscopy of a two-component Mott insulator
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PhysRevA.99.033612.pdf
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Author(s)
Amato-Grill, Jesse
Jepsen, Niklas
Dimitrova, Ivana
Lunden, William David
Ketterle, Wolfgang
Date Issued
March 2019
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Physics
MIT-Harvard Center for Ultracold Atoms
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DOI of Published Version
https://doi.org/10.1103/physreva.99.033612
