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Λ\Lambda-symmetry and background independence of noncommutative gauge theory on Rn\mathbb R^n

Abstract

Background independence of noncommutative Yang-Mills theory on Rn\mathbb R^n is discussed. The quantity θF^θ−θ\theta \hat F \theta - \theta is found to be background dependent at subleading order, and it becomes background independent only when the ordinary gauge field strength FF is constant. It is shown that, at small values of BB, the noncommutative Dirac-Born-Infeld action possesses Λ\Lambda-symmetry at least to subleading order in θ\theta if FF damps fast enough at infinity.Comment: 16 pages, LaTeX2e, minor revisions (version published in JHEP

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    Last time updated on 03/12/2019