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Title: Dissipative Bose-Hubbard system with intrinsic two-body loss
Authors: Tomita, Takafumi
Nakajima, Shuta  kyouindb  KAKEN_id
Takasu, Yosuke  kyouindb  KAKEN_id  orcid (unconfirmed)
Takahashi, Yoshiro  kyouindb  KAKEN_id
Author's alias: 富田, 隆文
中島, 秀太
高須, 洋介
高橋, 義朗
Issue Date: 11-Mar-2019
Publisher: American Physical Society
Journal title: Physical Review A
Volume: 99
Issue: 3
Thesis number: 031601
Abstract: We report an experimental study of dynamics of the metastable ³P₂ state of bosonic ytterbium atoms in an optical lattice. The dissipative Bose-Hubbard system with on-site two-body atom loss is realized via its intrinsic strong inelastic collision of the metastable ³P₂ atoms. We investigate the atom loss behavior with the unit-filling Mott insulator as the initial state and find that the atom loss is suppressed by the strong correlation between atoms, which is attributed to both the on-site interaction and the inelastic loss. Also, as we decrease the potential depth of the lattice, we observe the growth of the phase coherence and find its suppression owing to the dissipation.
Rights: ©2019 American Physical Society
DOI(Published Version): 10.1103/PhysRevA.99.031601
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