Preparation of the Spin-Mott State: A Spinful Mott Insulator of Repulsively Bound Pairs
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We observe and study a special ground state of bosons with two spin states in an optical lattice: the spin-Mott insulator, a state that consists of repulsively bound pairs that is insulating for both spin and charge transport. Because of the pairing gap created by the interaction anisotropy, it can be prepared with low entropy and can serve as a starting point for adiabatic state preparation. We find that the stability of the spin-Mott state depends on the pairing energy, and observe two qualitatively different decay regimes, one of which exhibits protection by the gap.
Date issued
2022-03-04Department
Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold AtomsJournal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
de Hond, Julius, Xiang, Jinggang, Chung, Woo Chang, Cruz-Colón, Enid, Chen, Wenlan et al. 2022. "Preparation of the Spin-Mott State: A Spinful Mott Insulator of Repulsively Bound Pairs." Physical Review Letters, 128 (9).
Version: Final published version