Periodic Vortex Structures in Superfluid 3He-A

Details Periodic Vortex Structures in Superfluid 3He-A Periodic Vortex Structures in Superfluid 3He-A

1999-02-15

arxiv.org/abs/cond-mat/9902207v1

Phys. Rev. B 60, 15290 (1999).

Physics

Condensed Matter

13 pages, 7 figures, http://boojum.hut.fi/research/theory/diagram.html

Scientific paper

10.1103/PhysRevB.60.15290

We discuss the general properties of periodic vortex arrangements in rotating superfluids. The different possible structures are classified according to the symmetry space-groups and the circulation number. We calculate numerically several types of vortex structures in superfluid 3He-A. The calculations are done in the Ginzburg-Landau region, but the method is applicable at all temperatures. A phase diagram of vortices is constructed in the plane formed by the magnetic field and the rotation velocity. The characteristics of the six equilibrium vortex solutions are discussed. One of these, the locked vortex 3, has not been considered in the literature before. The vortex sheet forms the equilibrium state of rotating 3He-A at rotation velocities exceeding 2.6 rad/s. The results are in qualitative agreement with experiments.

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