Gauge symmetry enhancement in Hamiltonian formalism

Details Gauge symmetry enhancement in Hamiltonian formalism Gauge symmetry enhancement in Hamiltonian formalism

2003-05-28

arxiv.org/abs/hep-th/0305245v2

Phys.Rev. D68 (2003) 065022

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, typos corrected

Scientific paper

10.1103/PhysRevD.68.065022

We study the Hamiltonian structure of the gauge symmetry enhancement in the enlarged CP(N) model coupled with U(2) Chern-Simons term, which contains a free parameter governing explicit symmetry breaking and symmetry enhancement. After giving a general discussion of the geometry of constrained phase space suitable for the symmetry enhancement, we explicitly perform the Dirac analysis of our model and compute the Dirac brackets for the symmetry enhanced and broken cases. We also discuss some related issues.

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