TY - JOUR
T1 - Vortex solitons in dipolar Bose-Einstein condensates
AU - Tikhonenkov, I.
AU - Malomed, B. A.
AU - Vardi, A.
PY - 2008/10/28
Y1 - 2008/10/28
N2 - We predict solitary vortices in quasiplanar condensates of dipolar atoms, polarized parallel to the confinement direction, with the effective sign of the dipole-dipole interaction inverted by means of a rapidly rotating field. Energy minima corresponding to vortex solitons with topological charges ℓ=1 and 2 are predicted for moderately strong dipole-dipole interaction, using an axisymmetric Gaussian Ansatz. The stability of the solitons with ℓ=1 is confirmed by full three-dimensional simulations, whereas their counterparts with ℓ=2 are found to be unstable against splitting into a set of four fragments (quadrupole).
AB - We predict solitary vortices in quasiplanar condensates of dipolar atoms, polarized parallel to the confinement direction, with the effective sign of the dipole-dipole interaction inverted by means of a rapidly rotating field. Energy minima corresponding to vortex solitons with topological charges ℓ=1 and 2 are predicted for moderately strong dipole-dipole interaction, using an axisymmetric Gaussian Ansatz. The stability of the solitons with ℓ=1 is confirmed by full three-dimensional simulations, whereas their counterparts with ℓ=2 are found to be unstable against splitting into a set of four fragments (quadrupole).
UR - http://www.scopus.com/inward/record.url?scp=55049109202&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.78.043614
DO - 10.1103/PhysRevA.78.043614
M3 - Article
AN - SCOPUS:55049109202
SN - 1050-2947
VL - 78
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043614
ER -