Evolution of the Interference of Bose Condensates Released from a Double-Well Potential
ZHU Bi-Hui1,2,3, LIU Shu-Juan1,2, XIONG Hong-Wei1, 2**
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 2Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Evolution of the Interference of Bose Condensates Released from a Double-Well Potential
ZHU Bi-Hui1,2,3, LIU Shu-Juan1,2, XIONG Hong-Wei1, 2**
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 2Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 3Graduate School of the Chinese Academy of Sciences, Beijing 100049
摘要The interference pattern of two Bose–Einstein condensates released from a double-well potential for different holding times is theoretically investigated using a decoupled two-mode Bose–Hubbard model. For two coherently separated condensates, the interference displays a periodic behavior, which is closely related to the atomic interaction. A remarkable parity effect is found in the interference patterns. For certain holding times, the even/odd total number of atoms would result in different interference fringes. The influences of different initial conditions on the evolution of interference and the observation of parity effects are discussed.
Abstract：The interference pattern of two Bose–Einstein condensates released from a double-well potential for different holding times is theoretically investigated using a decoupled two-mode Bose–Hubbard model. For two coherently separated condensates, the interference displays a periodic behavior, which is closely related to the atomic interaction. A remarkable parity effect is found in the interference patterns. For certain holding times, the even/odd total number of atoms would result in different interference fringes. The influences of different initial conditions on the evolution of interference and the observation of parity effects are discussed.
ZHU Bi-Hui;;LIU Shu-Juan;XIONG Hong-Wei;**
. Evolution of the Interference of Bose Condensates Released from a Double-Well Potential[J]. 中国物理快报, 2011, 28(9): 90303-090303.
ZHU Bi-Hui, , LIU Shu-Juan, XIONG Hong-Wei, **
. Evolution of the Interference of Bose Condensates Released from a Double-Well Potential. Chin. Phys. Lett., 2011, 28(9): 90303-090303.
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2011, Vol. 28 
