Superfluid to Mott-insulator transition in a one-dimensional optical lattice

被引：1

作者：

Liu, Wenliang ^{[1
,2
]}

Zheng, Ningxuan ^{[1
]}

Jian, Jun ^{[3
]}

Tian, Li ^{[1
]}

Wu, Jizhou ^{[1
]}

Li, Yuqing ^{[1
,2
]}

Fu, Yongming ^{[1
]}

Li, Peng ^{[1
]}

Sovkov, Vladimir ^{[1
,4
]}

Ma, Jie ^{[1
,2
]}

Xiao, Liantuan ^{[1
,2
]}

Jia, Suotang ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

[3] Xihua Univ, Sch Sci, Key Lab High Performance Sci Computat, Chengdu 610039, Peoples R China

[4] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

CHINESE PHYSICS B | 2022年 / 31卷 / 07期

基金：

中国国家自然科学基金; 俄罗斯基础研究基金会;

关键词：

Bose-Einstein condensate; optical lattice; superfluid; Mott-insulator phase;

D O I：

10.1088/1674-1056/ac6579

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Bose-Einstein condensates (BEC) of sodium atoms are transferred into one-dimensional (1D) optical lattice potentials, formed by two laser beams with a wavelength of 1064 nm, in a shallow optical trap. The phase coherence of the condensate in the lattice potential is studied by changing the lattice depth. A qualitative change in behavior of the BEC is observed at a lattice depth of similar to 13.7 E (r), where the quantum gas undergoes a transition from a superfluid state to a state that lacks well-to-well phase coherence.

引用

页数：4

共 26 条

[1] Ultracold quantum gases in triangular optical lattices
Becker, C.
Soltan-Panahi, P.
Kronjaeger, J.
Doescher, S.
Bongs, K.
Sengstock, K.
[J]. NEW JOURNAL OF PHYSICS, 2010, 12
[2] Quantum Quench and Nonequilibrium Dynamics in Lattice-Confined Spinor Condensates
Chen, Z.
Tang, T.
Austin, J.
Shaw, Z.
Zhao, L.
Liu, Y.
[J]. PHYSICAL REVIEW LETTERS, 2019, 123 (11)
[3] Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
Greiner, M
Mandel, O
Esslinger, T
Hänsch, TW
Bloch, I
[J]. NATURE, 2002, 415 (6867) : 39 - 44
[4] Interference of an array of independent Bose-Einstein condensates
Hadzibabic, Z
Stock, S
Battelier, B
Bretin, V
Dalibard, J
[J]. PHYSICAL REVIEW LETTERS, 2004, 93 (18) : 180403 - 1
[5] Optical lattices, ultracold atoms and quantum information processing
Jaksch, D
[J]. CONTEMPORARY PHYSICS, 2004, 45 (05) : 367 - 381
[6] Creation of a molecular condensate by dynamically melting a Mott insulator
Jaksch, D
Venturi, V
Cirac, JI
Williams, CJ
Zoller, P
[J]. PHYSICAL REVIEW LETTERS, 2002, 89 (04)
[7] Ketterle W., 1999, ARXIV COND MAT990403
[8] A transportable optical lattice clock at the National Time Service Center*
Kong, De-Huan
Wang, Zhi-Hui
Guo, Feng
Zhang, Qiang
Lu, Xiao-Tong
Wang, Ye-Bing
Chang, Hong
[J]. CHINESE PHYSICS B, 2020, 29 (07)
[9] Interaction broadening of Wannier functions and Mott transitions in atomic BEC
Li, Jinbin
Yu, Yue
Dudarev, Artem M.
Niu, Qian
[J]. NEW JOURNAL OF PHYSICS, 2006, 8
[10] Realization of Closed-Loop Operation of Optical Lattice Clock Based on 171Yb
Liu, Hui
Zhang, Xi
Jiang, Kun-Liang
Wang, Jin-Qi
Zhu, Qiang
Xiong, Zhuan-Xian
He, Ling-Xiang
Lyu, Bao-Long
[J]. CHINESE PHYSICS LETTERS, 2017, 34 (02)

← 1 2 3 →