Tuesday, February 26, 2013

1302.5862 (Yong-Kai Liu et al.)

Fractional windings of the spinor condensates on a ring    [PDF]

Yong-Kai Liu, Shi-Jie Yang
We study the uniform solutions to the one-dimensional spinor Bose-Einstein condensates on a ring. These states explicitly display the associated motion of the super-current and the spin rotation, which give rise to fractional winding numbers according to the various compositions of the hyperfine states. It simultaneously yields a fractional factor to the global phase due to the gauge-spin symmetry. Our method can be applied to explore the fractional vortices by identifying the ring as the boundary of two-dimensional spinor condensates.
View original: http://arxiv.org/abs/1302.5862

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