The notion of deconfinement in two d=1 models, the Schwinger model and the Heisenberg chain, is reexamined. Both have half-asymptotic excitations (where particles and antiparticles must alternate) and also truly asymptotic particles which are half as many in number. The two kinds of particles are related by a complicated transformation. The main purpose of this paper is to highlight the relationship between asymptotic and half-asymptotic particles. The relevance of our findings to higher dimensions is briefly discussed.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Dec 1 2005|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics