One-Form Abelian Gauge Theory As The Hodge Theory

Details One-Form Abelian Gauge Theory As The Hodge Theory One-Form Abelian Gauge Theory As The Hodge Theory

2006-09-28

arxiv.org/abs/hep-th/0609201v5

Int.J.Mod.Phys.A22:3521-3562,2007

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 39 pages, brief review, journal version

Scientific paper

10.1142/S0217751X07037135

We demonstrate that the two (1 + 1)-dimensional (2D) free 1-form Abelian gauge theory provides an interesting field theoretical model for the Hodge theory. The physical symmetries of the theory correspond to all the basic mathematical ingredients that are required in the definition of the de Rham cohomological operators of differential geometry. The conserved charges, corresponding to the above continuous symmetry transformations, constitute an algebra that is reminiscent of the algebra obeyed by the de Rham cohomological operators. The topological features of the above theory are discussed in terms of the BRST and co-BRST operators. The super de Rham cohomological operators are exploited in the derivation of the nilpotent (anti-)BRST, (anti-)co-BRST symmetry transformations and the equations of motion for all the fields of the theory, within the framework of the superfield formulation. The derivation of the equations of motion, by exploiting the super Laplacian operator, is a completely new result in the framework of the superfield approach to BRST formalism. In an Appendix, the interacting 2D Abelian gauge theory (where there is a coupling between the U(1) gauge field and the Dirac fields) is also shown to provide a tractable field theoretical model for the Hodge theory.

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