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Bloch Oscillations of Two-Component Bose--Einstein Condensates in Optical Lattices |
| GU Huai-Qiang;WANG Zhi-Cheng;JIN Kang;TAN Lei |
| Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000 |
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| Cite this article: |
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GU Huai-Qiang, WANG Zhi-Cheng, JIN Kang et al 2006 Chin. Phys. Lett. 23 556-559 |
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Abstract We study the Bloch oscillations of two-component Bose--Einstein condensates trapped in spin-dependent optical lattices. The influence of the intercomponent atom interaction on the system is discussed in detail. Accelerated breakdown of the Bloch oscillations and revival phenomena are found respectively for the repulsive and attractive case. For both the cases, the system will finally be set in a quantum self-trapping state due to dynamical instability.
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| Keywords:
03.75.Mn
03.75.Lm
63.20.Pw
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Published: 01 March 2006
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| PACS: |
03.75.Mn
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(Multicomponent condensates; spinor condensates)
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03.75.Lm
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(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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63.20.Pw
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(Localized modes)
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