Hamiltonian Formulation of Jackiw--Pi 3-Dimensional Gauge Theories

Details Hamiltonian Formulation of Jackiw--Pi 3-Dimensional Gauge Theories Hamiltonian Formulation of Jackiw--Pi 3-Dimensional Gauge Theories

1997-11-11

arxiv.org/abs/hep-th/9711079v2

Mod.Phys.Lett. A13 (1998) 1969-1978

Physics

High Energy Physics

High Energy Physics - Theory

A new system is proposed and some comments and references added. Latex, 10 pages

Scientific paper

10.1142/S0217732398002072

A 3-dimensional non-abelian gauge theory was proposed by Jackiw and Pi to create mass for the gauge fields. However, the quadratic action obtained by switching off the non-abelian interactions possesses more gauge symmetries than the original one, causing some difficulties in quantization. Jackiw and Pi proposed another action by introducing new fields, whose gauge symmetries are consistent with the quadratic part. It is shown that all of these theories have the same number of physical degrees of freedom in the hamiltonian framework. Hence, as far as the physical states are considered there is no inconsistency. Nevertheless, perturbation expansion is still problematic. To cure this we propose to modify one of the constraints of the non-abelian theory without altering neither its canonical hamiltonian nor the number of physical states.

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