Q Rings

Details Q Rings Q Rings

2001-01-17

arxiv.org/abs/hep-ph/0101193v1

Phys.Rev.Lett. 86 (2001) 4459-4462

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 double column pages including 2 figures

Scientific paper

10.1103/PhysRevLett.86.4459

We show the existence of new stable ring-like localized scalar field configurations whose stability is due to a combination of topological and nontopological charges. In that sense these defects may be called semitopological. These rings are Noether charged and also carry Noether current (they are superconducting). They are local minima of the energy in scalar field theories with an unbroken U(1) global symmetry. We obtain numerical solutions of the field configuration corresponding to large rings and derive virial theorems demonstrating their stability. We also derive the minimum energy field configurations in 3D and simulate the evolution of a finite size Q ring on a three dimensional lattice thus generalizing our demonstration of stability.

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