Microscopic Study on Superexchange Dynamics of Composite Spin-1 Bosons

被引：1

作者：

Luo, An ^{[1
,2
,3
]}

Zheng, Yong-Guang ^{[1
,2
,3
,5
]}

Zhang, Wei-Yong ^{[1
,2
,3
]}

He, Ming-Gen ^{[1
,2
,3
]}

Shen, Ying-Chao ^{[1
,2
,3
]}

Zhu, Zi-Hang ^{[1
,2
,3
]}

Yuan, Zhen-Sheng ^{[1
,2
,3
,4
]}

Pan, Jian-Wei ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Sch Phys Sci, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phy, Hefei 230026, Peoples R China

[4] Univ Sci & Technol China, Hefei Natl Lab, Hefei 230088, Peoples R China

[5] Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 04期

基金：

中国博士后科学基金;

关键词：

ULTRACOLD ATOMS; QUANTUM; PHASE; ENTANGLEMENT; GAS;

D O I：

10.1103/PhysRevLett.133.043401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on an experimental simulation of the spin-1 Heisenberg model with composite bosons in a one-dimensional chain based on the two-component Bose-Hubbard model. Exploiting our site- and spin- resolved quantum gas microscope, we observed faster superexchange dynamics of the spin-1 system compared to its spin-1=2 = 2 counterpart, which is attributed to the enhancement effect of multi-bosons. We further probed the nonequilibrium spin dynamics driven by the superexchange and single-ion anisotropy terms, unveiling the linear expansion of the spin-spin correlations, which is limited by the Lieb-Robinson bound. Based on the superexchange process, we prepared and verified the entangled qutrits pairs with these composite spin-1 bosons, potentially being applied in qutrit-based quantum information processing.

引用

页数：7

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