Lightfront Hamiltonian Structures for the Nonlinear Sigma Model
arXiv:hep-th/9802200 · doi:10.1142/S0217732398001200
Abstract
We derive the Dirac brackets for the O(N) nonlinear sigma model in the lightfront description with and without the constraint. We bring out various subtleties that arise including the fact that anti-periodic boundary condition seems to be preferred.
References added, 11 pages, plain Tex