Fragmentation, domain formation and atom number fluctuations of a two-species Bose-Einstein condensate in an optical lattice

被引：6
|
作者：
Shrestha, Uttam [2 ,3 ]
Ruostekoski, Janne [1 ]
机构：
[1] Univ Southampton, Sch Math, Southampton SO17 1BJ, Hants, England
[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
[3] Univ Firenze, LENS, I-50019 Florence, Italy
来源：
NEW JOURNAL OF PHYSICS | 2012年 / 14卷
基金：
英国工程与自然科学研究理事会;
关键词：
DARK-BRIGHT SOLITONS; VORTEX RINGS; DYNAMICS; STATES; ENTANGLEMENT; SEPARATION; COLLISIONS; GASES; NOISE;
D O I：
10.1088/1367-2630/14/4/043037
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We theoretically study the loading of a two-species Bose-Einstein condensate to an optical lattice in a tightly confined one-dimensional trap. Due to quantum fluctuations, the relative inter- and intra-species phase coherence between the atoms and the on-site atom number fluctuations are reduced in the miscible regime. For the immiscible case the fluctuations are enhanced and the atoms form metastable interleaved spatially separated domains where the domain length and its fluctuations are affected by quantum fluctuations.
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页数：32
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