Topological Landau-Ginzburg theory for vortices in superfluid He-4
Sep, 1993
10 pages
Published in:
- Phys.Rev.B 49 (1994) 15870
e-Print:
- cond-mat/9309018 [cond-mat]
Report number:
- KUNS-1220
Citations per year
Abstract: (APS)
We propose a modified Landau-Ginzburg theory for arbitrarily shaped vortex strings in superfluid He4. The theory contains a topological term and directly describes vortex dynamics. We introduce gauge fields in order to remove singularities from the Landau-Ginzburg order parameter of the superfluid, so that two kinds of gauge symmetries appear, making the continuity equation and conservation of the total vorticity manifest. The topological term gives rise to the Berry phase term in the vortex mechanical actions.- helium: superfluid
- vortex: string
- Landau-Ginzburg model: topological
- gauge field theory
- Berry phase
References(18)
Figures(0)