2013
DOI: 10.1007/jhep11(2013)110
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Dirac sigma models from gauging

Abstract: The G/G WZW model results from the WZW-model by a standard procedure of gauging. G/G WZW models are members of Dirac sigma models, which also contain twisted Poisson sigma models as other examples. We show how the general class of Dirac sigma models can be obtained from a gauging procedure adapted to Lie algebroids in the form of an equivariantly closed extension. The rigid gauge groups are generically infinite dimensional and a standard gauging procedure would give a likewise infinite number of 1-form gauge f… Show more

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Cited by 17 publications
(20 citation statements)
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“…This section is mainly a review following the ideas of [41]; the lifting to the tangent, that will be important in the end for our application, is inspired by its sequels [28,42].…”
Section: Basics Of the Q -Formalismmentioning
confidence: 99%
“…This section is mainly a review following the ideas of [41]; the lifting to the tangent, that will be important in the end for our application, is inspired by its sequels [28,42].…”
Section: Basics Of the Q -Formalismmentioning
confidence: 99%
“…This is the central result of this paper. Additionally, it will allow us to find the form of the gauge symmetries for Dirac σ-models, which are very general two-dimensional topological field theories interpolating between WZW models and Poisson σ-models and they were introduced in [23,24]. Our analysis will be complemented with an explicit example where we will apply our findings to the WZ Poisson σ-model with a kinetic term.…”
Section: Introductionmentioning
confidence: 94%
“…At the availability of a metric g on M, which is the case here, yet another parametrization of Dirac structures is possible, as explained in [23,24]. Instead of referring to the generalized vectors ξ a = ρ a + θ a , one uses the Riemannian metric g to identify T M with T * M and introduces an orthogonal operator O = O i j ∂ i ⊗ dX j ∈ Γ(End(T M)) whose graph is the Dirac structure D. The role of this operator is that for any element, say v ⊕ η with v a vector and η an 1-form, of the Dirac structure there exists a unique section a of T M such…”
Section: Dirac Structures and Dirac σ-Modelsmentioning
confidence: 99%
“…[16][17][18][19][20]. The essence of this formulation relies on an extension of the standard infinitesimal gauge transformations for the gauge fields A a to include a part proportional to DX i , where X i are the world sheet scalars and DX i is the gauge covariant derivative on the world sheet obtained by minimal coupling.…”
Section: Jhep01(2016)154mentioning
confidence: 99%
“…In order to proceed, we have to use some properties of step 2 nilmanifolds. To this end we consider the splitting of the indices a = (a 0 ,ā) such that C identically, and 18) provided that…”
Section: A Class Of Examplesmentioning
confidence: 99%