Spontaneous spatial symmetry breaking in two-component Bose-Einstein condensates

被引：85

作者：

Esry, BD ^{[1
]}

Greene, CH

机构：

[1] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Univ Colorado, JILA, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.59.1457

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We discuss the general features of spontaneous spatial symmetry breaking in trapped two-component alkali-metal-atom Bose-Einstein condensates, and give qualitative guidelines for when it will occur. We further show that the Hartree-Fock equations admit symmetry-broken solutions for as few as two trapped atoms, discussing the particular system of one Rb-85 atom and one Rb-87 atom. It is also shown that the critical value of the interspecies scattering length for a mixture of Na and Rb in an isotropic trap depends strongly on the number of atoms in a manner not described by the standard Thomas-Fermi phase separation condition. [S1050-2947(99)00101-8].

引用

页码：1457 / 1460

页数：4

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