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arXiv · hep-th/9404183

Gauge Field Improvement,Form-Scalar Duality and Conformal Invariance

S. Deser·A. Schwimmer
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Abstract

The problem of maintaining scale and conformal invariance in Maxwell and general N-form gauge theories away from their critical dimension d=2(N+1) is analyzed.We first exhibit the underlying group-theoretical clash between locality,gauge,Lorentz and conformal invariance require- ments. "Improved" traceless stress tensors are then constructed;each violates one of the above criteria.However,when d=N+2,there is a duality equivalence between N-form models and massless scalars.Here we show that conformal invariance is not lost,by constructing a quasilocal gauge invariant improved stress tensor.The correlators of the scalar theory are then reproduced,including the latter's trace anomaly.

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S. Deser, A. Schwimmer. 1994-04-29. Gauge Field Improvement,Form-Scalar Duality and Conformal Invariance. https://doi.org/10.1142/s0217979294001627

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