Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-09-29
Braz.J.Phys.37:1106-1110,2007
Physics
High Energy Physics
High Energy Physics - Theory
revised version. To appear in Brazilian Journal of Physics
Scientific paper
10.1590/S0103-97332007000700005
We propose a variant scheme of the Gauge Unfixing formalism which modifies directly the original phase space variables of a constrained system. These new variables are gauge invariant quantities. We apply our procedure in a mixed constrained system that is the Abelian Pure Chern Simons Theory where several gains are obtained. In particular, from the gauge invariant Hamiltonian and using the inverse Legendre transformation, we obtain the same initial Abelian Pure Chern Simons Lagrangian as the gauge invariant Lagrangian. This result shows that the gauge symmetry of the action is certainly preserved.
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