Dissipative Bose-Hubbard system with intrinsic two-body loss
Dissipative Bose-Hubbard system with intrinsic two-body loss
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DOI：
10.1103/physreva.99.031601
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发表时间：
2018-09
影响因子：
2.9
通讯作者：
T. Tomita;S. Nakajima;Y. Takasu;Y. Takahashi
中科院分区：
文献类型：
--
作者：
T. Tomita;S. Nakajima;Y. Takasu;Y. Takahashi
本文报道了玻色镱原子亚稳$^3P_2$态在光学晶格中动力学的实验研究。通过亚稳$^3P_2$原子的内禀强非弹性碰撞实现了具有在位两体原子损失的耗散玻色-哈伯德系统。我们研究了以单元填充的Mott绝缘体为初始态的原子损失行为，发现原子之间的强关联抑制了原子损失。此外，当我们减少的潜在的深度的晶格，我们观察到的增长的相位相干性，并发现其抑制由于耗散。
We report an experimental study of dynamics of the metastable $^3P_2$ 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 $^3P_2$ 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. 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.