Effective-mass analysis of Bose-Einstein condensates in optical lattices: Stabilization and levitation

Effective-mass analysis of Bose-Einstein condensates in optical lattices: Stabilization and levitation
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DOI:
10.1103/physreva.67.043605
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发表时间:
2002-12
期刊:
影响因子:
2.9
通讯作者:
H. Pu;L. Baksmaty;W. Zhang;N. Bigelow;P. Meystre
H. Pu;L. Baksmaty;W. Zhang;N. Bigelow;P. Meystre
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
H. Pu;L. Baksmaty;W. Zhang;N. Bigelow;P. Meystre

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We investigate the time evolution of a Bose-Einstein condensate in a periodic optical potential. Using an effective mass formalism, we study the equation of motion for the envelope function modulating the Bloch states of the lattice potential. In particular, we show how the negative effective-mass affects the dynamics of the condensate.