The CP(N-1) model on a Disc and Decay of a Non-Abelian String
High Energy Physics - Theory
2013-10-30 v1 Mesoscale and Nanoscale Physics
Statistical Mechanics
Abstract
We consider the role of quantum effects in the non-perturbative decay of non-abelian string with orientational moduli in non-supersymmetric D=4 gauge theory. To this aim the effective action in the model on a disc at large N has been calculated. It exhibits phase transition at some radius, the "wrong sign" Luscher term and large boundary boojum-like negative contribution. The effect of - term and the possibility of the spontaneous creation of the non-abelian string are briefly discussed.
Keywords
Cite
@article{arxiv.1306.3565,
title = {The CP(N-1) model on a Disc and Decay of a Non-Abelian String},
author = {A. Gorsky and A. Milekhin},
journal= {arXiv preprint arXiv:1306.3565},
year = {2013}
}