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arXiv · hep-th/0305118

Wigner's little group and BRST cohomology for one-form Abelian gauge theory

R. P. Malik
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Abstract

We discuss the (dual-)gauge transformations for the gauge-fixed Lagrangian density and establish their intimate connection with the translation subgroup T(2) of the Wigner's little group for the free one-form Abelian gauge theory in four $(3 + 1)$-dimensions (4D) of spacetime. Though the relationship between the usual gauge transformation for the Abelian massless gauge field and T(2) subgroup of the little group is quite well-known, such a connection between the dual-gauge transformation and the little group is a new observation. The above connections are further elaborated and demonstrated in the framework of Becchi-Rouet-Stora-Tyutin (BRST) cohomology defined in the quantum Hilbert space of states where the Hodge decomposition theorem (HDT) plays a very decisive role.

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R. P. Malik. 2004-07-13. Wigner's little group and BRST cohomology for one-form Abelian gauge theory. https://doi.org/10.1142/s0217751x04018129

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