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

Shrestha, Uttam and Ruostekoski, Janne (2012) Fragmentation, domain formation and atom number fluctuations of a two-species Bose–Einstein condensate in an optical lattice. New Journal of Physics, 14. ISSN 1367-2630

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Abstract

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 coherencebetween 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 domainlength and its fluctuations are affected by quantum fluctuations.

Item Type:
Journal Article
Journal or Publication Title:
New Journal of Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123707
Deposited By:
Deposited On:
26 Feb 2018 09:30
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Feb 2020 09:20