Chao-Fei Liu, Wu-Ming Liu
We investigate the fractionalized skyrmion in rotating and rapidly quenched
spin-1 Bose-Einstein condensates with spin-orbit coupling. Our results show
that the fractionalized skyrmion excitation needs the association of spin-orbit
coupling and rotation, and it occurs even when the
ferromagnetism/antiferromagnetism is enhanced. The fractionalized skyrmion
originates from a dipole which is always embedded in three vortices constructed
by each condensate respectively. The fractionalized skyrmions form a radial
lattice where the fractionalized skyrmions encircle the center skyrmion. We can
adjust the lattice with both the spin-orbit coupling and the rotation.
View original:
http://arxiv.org/abs/1202.1911
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