Twisted plasma column
2002 (English)In: Phys. Lett., Vol. B534, 195-200 p.Article in journal (Refereed) Published
We inspect a particular gauge field theory model that describes the properties of a variety of physical systems, including a charge neutral two-component plasma, a Gross-Pitaevskii functional of two charged Cooper pair condensates, and a limiting case of the bosonic sector in the Salam-Weinberg model. It has been argued that this field theory model also admits stable knot-like solitons. Here we produce numerical evidence in support for the existence of these solitons, by considering stable axis-symmetric solutions that can be thought of as straight twisted vortex lines clamped at the two ends. We compute the energy of these solutions as a function of the amount of twist per unit length. The result can be described in terms of a energy spectral function. We find that this spectral function acquires a minimum which corresponds to a nontrivial twist per unit length, strongly suggesting that the model indeed supports stable toroidal solitons.
Place, publisher, year, edition, pages
2002. Vol. B534, 195-200 p.
IdentifiersURN: urn:nbn:se:uu:diva-21338OAI: oai:DiVA.org:uu-21338DiVA: diva2:49111