Improved BFT quantization of O(3) nonlinear sigma model
High Energy Physics - Theory
2009-10-31 v1
Abstract
We newly apply the improved Batalin-Fradkin-Tyutin(BFT) Hamiltonian method to the O(3) nonlinear sigma model, and directly obtain the compact form of nontrivial first class Hamiltonian by introducing the BFT physical fields. Furthermore, following the BFV formalism, we derive the BRST invariant gauge fixed Lagrangian through the standard path-integral procedure. Finally, by introducing collective coordinates, we also study a semi-classical quantization of soliton background to conclude that the spectrum of zero modes are unchanged through the BFT procedure.
Cite
@article{arxiv.hep-th/9908112,
title = {Improved BFT quantization of O(3) nonlinear sigma model},
author = {Soon-Tae Hong and Won Tae Kim and Young-Jai Park},
journal= {arXiv preprint arXiv:hep-th/9908112},
year = {2009}
}
Comments
17 pages, revtex, to appear in Phys. Rev. D