Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability

Shrestha, Uttam and Javanainen, Juha and Ruostekoski, Janne (2009) Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability. Physical review letters, 103 (19). ISSN 1079-7114

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Abstract

We study numerically the outcome of the phase separation instability of a dual-species Bose-Einstein condensate in an optical lattice. When only one excitation mode is unstable a bound pair of bright and dark soliton like structures periodically appears and disappears, whereas for more than one unstable mode a persistent soliton-antisoliton pair develops. The oscillating soliton represents a regime where the two species condensate neither remains phase-separated nor is dynamically stable.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123670
Deposited By:
Deposited On:
26 Feb 2018 12:06
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Feb 2020 09:20