Strongly Coupled Lattice Gauge Theories and Antiferromagnetic Spin Systems

Details Strongly Coupled Lattice Gauge Theories and Antiferromagnetic Spin Systems Strongly Coupled Lattice Gauge Theories and Antiferromagnetic Spin Systems

1999-02-04

arxiv.org/abs/hep-th/9902036v1

Physics

High Energy Physics

High Energy Physics - Theory

120 pages, 14 figures, LaTeX

Scientific paper

In this thesis, I use the strong coupling expansion to investigate the multiflavor lattice Schwinger models in the hamiltonian formalism using staggered fermions. In particular, I am interested in analysing the mapping of these gauge theories onto quantum spin-1/2 antiferromagnetic Heisenberg chains. Exploting this mapping, the chiral symmetry breaking patterns are studied and the spectra are computed. The extrapolation to zero lattice spacing of the results compare favorably qualitatively and quantitatively with the weak coupling studies of the gauge models in the continuum.

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