Nonlinear Ramsey interference of Fermi superfluid gases in unitarity regime

被引:1
|
作者
Meng Hong-Juan [1 ]
Gou Xue-Qiang [1 ]
Wang Wen-Yuan [1 ]
Yang Yang [1 ]
Ma Ying [1 ]
Ma Yun-Yun [1 ]
Duan Wen-Shan [1 ]
机构
[1] NW Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China
基金
中国国家自然科学基金;
关键词
Fermi superfluid gases; nonlinear Ramsey interference; THERMODYNAMIC STABILITY; EINSTEIN;
D O I
10.7498/aps.61.197301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the relationships between the nonlinear Ramsey interference pattern of the angular frequency and system parameters of fermi superfluid gase in unitarity regime in three limited cases. We find that the interaction between fermions and the difference in energy between double-well potentials have a significant influence on the angular frequency of the interference pattern. Through numerical simulation and theoretical analysis, the relationship between angular frequency of the interference pattern and the system parameters is given, and the numerical simulations and theoretical analyses are in good agreement.
引用
收藏
页数:8
相关论文
共 27 条
  • [1] Nonlinear Schrodinger equation for a superfluid Bose gas from weak coupling to unitarity: Study of vortices
    Adhikari, S. K.
    Salasnich, L.
    [J]. PHYSICAL REVIEW A, 2008, 77 (03):
  • [2] dc Josephson effect with Fermi gases in the Bose-Einstein regime
    Ancilotto, F.
    Salasnich, L.
    Toigo, F.
    [J]. PHYSICAL REVIEW A, 2009, 79 (03):
  • [3] OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR
    ANDERSON, MH
    ENSHER, JR
    MATTHEWS, MR
    WIEMAN, CE
    CORNELL, EA
    [J]. SCIENCE, 1995, 269 (5221) : 198 - 201
  • [4] Huang ZF, 2009, CHINESE PHYS B, V18, P1380, DOI 10.1088/1674-1056/18/4/016
  • [5] Nonlinear particle interaction effects on Ramsey interferometry in an atom-heteronuclear molecule conversion system
    Li, Sheng-Chang
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2010, 43 (20)
  • [6] Nonlinear Ramsey interferometry with Rosen-Zener pulses on a two-component Bose-Einstein condensate
    Li, Sheng-Chang
    Fu, Li-Bin
    Duan, Wen-Shan
    Liu, Jie
    [J]. PHYSICAL REVIEW A, 2008, 78 (06):
  • [7] Theory of nonlinear Landau-Zener tunneling
    Liu, J
    Fu, LB
    Ou, BY
    Chen, SG
    Choi, DI
    Wu, B
    Niu, Q
    [J]. PHYSICAL REVIEW A, 2002, 66 (02): : 1 - 7
  • [8] Quantum tunneling of Bose-Einstein condensates in optical lattices under gravity
    Liu, WM
    Fan, WB
    Zheng, WM
    Liang, JQ
    Chui, ST
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (17) : 1704081 - 1704084
  • [9] Dynamical phase changes of the self-trapping of Bose-Einstein condensates and its characteristic of entanglement
    Ma Yun
    Fu Li-Bin
    Yang Zhi-An
    Lu Jie
    [J]. ACTA PHYSICA SINICA, 2006, 55 (11) : 5623 - 5628
  • [10] Men FD, 2008, CHINESE PHYS B, V17, P3236, DOI 10.1088/1674-1056/17/9/015