Wilson Loops, Bianchi Constraints and Duality in Abelian Lattice Models

Details Wilson Loops, Bianchi Constraints and Duality in Abelian Lattice Models Wilson Loops, Bianchi Constraints and Duality in Abelian Lattice Models

1998-08-05

arxiv.org/abs/hep-th/9808018v2

Nucl.Phys.B542:441-470,1999

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX 30 pages, 6 figures and 2 tables. References updated and connection with earlier work clarified, final version to appear

Scientific paper

10.1016/S0550-3213(98)00808-6

We introduce new modified Abelian lattice models, with inhomogeneous local interactions, in which a sum over topological sectors are included in the defining partition function. The dual models, on lattices with arbitrary topology, are constructed and they are found to contain sums over topological sectors, with modified groups, as in the original model. The role of the sum over sectors is illuminated by deriving the field-strength formulation of the models in an explicitly gauge-invariant manner. The field-strengths are found to satisfy, in addition to the usual local Bianchi constraints, global constraints. We demonstrate that the sum over sectors removes these global constraints and consequently softens the quantization condition on the global charges in the system. Duality is also used to construct mappings between the order and disorder variables in the theory and its dual. A consequence of the duality transformation is that correlators which wrap around non-trivial cycles of the lattice vanish identically. For particular dimensions this mapping allows an explicit expression for arbitrary correlators to be obtained.

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