Coreless vortex ground state of the rotating spinor condensate
arXiv:cond-mat/0208078 · doi:10.1103/PhysRevA.66.053604
Abstract
We study the ground state of the rotating spinor condensate and show that for slow rotation the ground state of the ferromagnetic spinor condensate is a coreless vortex. While coreless vortex is not topologically stable, we show that there is an energetic threshold for the creation of a coreless vortex. This threshold corresponds to a critical rotation frequency that vanishes as the system size increases. Also, we demonstrate the dramatically different behavior of the spinor condensate with anti-ferromagnetic interactions. For anti-ferromagnetic spinor condensate the angular momentum as a function of rotation frequency exhibits the familiar staircase behavior, but in contrast to an ordinary condensate the first step is to the state with angular momentum 1/2 per particle.
v2: Numerical parameters for trapping frequency in z-direction and for the particle number changed. Two new citations added ([13] and [22]). More discussion in chapter III A. added. A new Figure 4 added, former figure 4 changed to Figure 5
References in corpus (2)
Cited by in corpus (34)
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