期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 18, 页码 4031-4034出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.4031
关键词
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We show that the ground state of a spin-1 Bose gas with an antiferromagnetic interaction is a fragmented condensate in uniform magnetic fields. The number fluctuations in each spin component change rapidly from being enormous (order N) to exceedingly small (order 1) as the magnetization of the system increases. A fragmented condensate can be turned into a single condensate state by magnetic field gradients. The conditions for existence and method of detecting fragmented states are presented.
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