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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**
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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
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| Cite this article: |
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ZHU Bi-Hui, LIU Shu-Juan, XIONG Hong-Wei 2011 Chin. Phys. Lett. 28 090303 |
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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.
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| Keywords:
03.75.Dg
03.75.Kk
05.30.Jp
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Received: 24 May 2011
Published: 30 August 2011
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| PACS: |
03.75.Dg
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(Atom and neutron interferometry)
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03.75.Kk
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(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
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05.30.Jp
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(Boson systems)
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