2014/03/22 by M. C. Diamantini, C. A. Trugenberger
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1103/physrevd.89.107702
published as Physical Review D 89 (2014) 107702 · 5 pages, no figures. arXiv admin note: substantial text overlap with arXiv:1112.3281
arxiv created 2014/03/22 · arxiv updated 2015/06/19
Spin-charge separation, a crucial ingredient in 2D models of strongly correlated systems, in mostly considered in condensed matter applications. In this paper we present a relativistic field-theoretic model in which charged particles of spin 1/2 emerge by soldering spinless charges and magnetic vortices in a confinement quantum phase transition modelled as a tensor Higgs mechanism. The model involves two gauge fields, a vector one and a two-form gauge field interacting by the topological BF term. When this tensor gauge symmetry is spontaneously broken charges are soldered to the ends of magnetic vortices and thus confined by a linear potential. If the vector potential has a topological θ-term with value θ= π, the constituents of this "meson" acquire spin 1/2 in this transition.