Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability
AU - Shrestha, Uttam
AU - Javanainen, Juha
AU - Ruostekoski, Janne
PY - 2009/11/6
Y1 - 2009/11/6
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.103.190401
DO - 10.1103/PhysRevLett.103.190401
M3 - Journal article
VL - 103
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 19
M1 - 190401
ER -