Hidden Symmetries in Second Class Constrained Systems - Are New Fields Necessary?

Details Hidden Symmetries in Second Class Constrained Systems - Are New Fields Necessary? Hidden Symmetries in Second Class Constrained Systems - Are New Fields Necessary?

2000-07-28

arxiv.org/abs/hep-th/0007230v2

Int.J.Mod.Phys. A17 (2002) 4095-4112

Physics

High Energy Physics

High Energy Physics - Theory

Latex file, 20 pages, replaced with revised version with minor revisions [2 lines each added to 5th and 7th paras of Introduct

Scientific paper

10.1142/S0217751X02010716

For many systems with second class constraints, the question posed in the title is answered in the negative. We prove this for a range of systems with two second class constraints. After looking at two examples, we consider a fairly general proof. It is shown that, to unravel gauge invariances in second class constrained systems, it is sufficient to work in the original phase space itself. Extension of the phase space by introducing new variables or fields is not required.

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