Evolution of spin-dependent atomic wave packets in a harmonic potential
Wen Ling-Hua (文灵华)abc, Liu Min (刘敏)abc, Kong Ling-Bo (孔令波)abc, Chen Ai-Xi (陈爱喜)abc, Zhan Ming-Sheng (詹明生)ab
a State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; b Centre for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China; c Graduate School, Chinese Academy of Sciences, Wuhan 430071, China
Abstract We have investigated theoretically the evolution of spin-dependent atomic wave packets in a harmonic magnetic trapping potential. For a Bose-condensed gas, which undergoes a Mott insulator transition and a spin-dependent transport, the atomic wavefunction can be described by an entangled single-atom state. Due to the confinement of the harmonic potential, the density distributions exhibit periodic decay and revival, which is different from the case of free expansion after switching off the combined harmonic and optical lattice potential.
Received: 10 October 2004
Revised: 06 November 2004
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10474119 and 10474117),by the National Fundamental Research Programme of China (Grant No001CB309309), and also by funds from the Chinese Academy of Sciences.
Cite this article:
Wen Ling-Hua (文灵华), Liu Min (刘敏), Kong Ling-Bo (孔令波), Chen Ai-Xi (陈爱喜), Zhan Ming-Sheng (詹明生) Evolution of spin-dependent atomic wave packets in a harmonic potential 2005 Chinese Physics 14 690
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