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- W2951967464 abstract "We investigate some properties of a first-order polynomial formulation of the U(1) non-linear sigma-model in two Euclidean dimensions. The variables in this description are a 1-form field plus a 0-form Lagrange multiplier field. The usual spin variables are non-local functions of the new fields. As this construction incorporates O(2) invariance ab initio, only O(2)-invariant correlation functions (the only non-vanishing ones in the model) can be constructed. We show that the vortices play a dual role to the spin variables in the partition function. The equivalent Sine-Gordon description is obtained in a natural way, when one integrates out the 1-form field to get an effective partition function for the Lagrange multiplier. We also show how to introduce strings of vortices within this formulation." @default.
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- W2951967464 date "1996-02-23" @default.
- W2951967464 modified "2023-09-27" @default.
- W2951967464 title "The Polynomial Formulation of the U(1) Non-Linear Sigma-Model in 2 Dimensions" @default.
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