Phonon approach to an array of traps containing Bose-Einstein condensates

被引：85

作者：

Javanainen, J ^{[1
]}

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.60.4902

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate theoretically an array of traps containing Bose-Einstein condensates, taking into account tunneling of atoms between adjacent traps and atom-atom interactions within each trap. After an expansion valid in the limit of a large number of atoms, we end up studying a variation of the problem of phonons in a one-dimensional lattice. Analysis of these fictitous phonons and their vacua shows that the fluctuations in atom numbers and phases of the condensates behave qualitatively as in the much-studied case of two traps. [S1050-2947(99)06512-9].

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页码：4902 / 4909

页数：8

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