Wigner's little group, gauge transformations and dimensional descent
Rabin Banerjee, Biswajit Chakraborty
Abstract
We propose a technique called dimensional descent to show that Wigner's little group for massless particles, which acts as a generator of gauge transformation for usual Maxwell theory, has an identical role even for topologically massive gauge theories. The examples of B F theory and Maxwell-Chern-Simons theory are analyzed in details.
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