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Nuclear and High Energy Physics

Gauging the Poisson sigma model

Profile image of Roberto ZucchiniRoberto Zucchini

2008, Journal of High Energy Physics

https://doi.org/10.1088/1126-6708/2008/05/018
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49 pages

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Abstract

We show how to carry out the gauging of the Poisson sigma model in an AKSZ inspired formulation by coupling it to a generalization of the Weil model worked out in ref. [31]. We call the resulting gauged field theory, Poisson-Weil sigma model. We study the BV cohomology of the model and show its relation to Hamiltonian basic and equivariant Poisson cohomology. As an application, we carry out the gauge fixing of the pure Weil model and of the Poisson-Weil model. In the first case, we obtain the 2-dimensional version of Donaldson-Witten topological gauge theory, describing the moduli space of flat connections on a closed surface. In the second case, we recover the gauged A topological sigma model worked out by Baptista describing the moduli space of solutions of the so-called vortex equations.

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