Hidden symmetry and knot solitons in a charged two-condensate Bose system
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 65, no 10Article in journal (Refereed) Published
We show that a charged two-condensate Ginzburg-Landau model or equivalently a Gross-Pitaevskii functional for two charged Bose condensates, can be mapped onto a version of the nonlinear O(3) sigma model. This implies in particular that such a system possesses a hidden O(3) symmetry and allows for the formation of stable knotted solitons.
Place, publisher, year, edition, pages
2002. Vol. 65, no 10
classical field-theory, bcs superconductivity, einstein condensation, crossover, intersection, temperature, transition, vortices, topology, mgb2
IdentifiersURN: urn:nbn:se:kth:diva-21407DOI: 10.1103/PhysRevB.65.100512ISI: 000174548300020OAI: oai:DiVA.org:kth-21407DiVA: diva2:340105
QC 201005252010-08-102010-08-10Bibliographically approved