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arXiv · 1403.5677

Spin-Charge Soldering from Tensor Higgs mechanism

M. C. Diamantini·C. A. Trugenberger
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Abstract

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.

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M. C. Diamantini, C. A. Trugenberger. 2014-03-22. Spin-Charge Soldering from Tensor Higgs mechanism. https://doi.org/10.1103/physrevd.89.107702

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