Tunneling Through Sphalerons: The O(3) Sigma-Model on a Cylinder
High Energy Physics - Theory
2008-11-26 v1 High Energy Physics - Lattice
Abstract
We construct all instantons for the \nlsig\ on a cylinder, known not to exist on a finite time interval. We show that the widest instantons go through sphalerons. A re-interpretation of moduli-space transforms the scale parameter to a boundary condition in time. This may give a handle on the divergent instanton gas.
Cite
@article{arxiv.hep-th/9405129,
title = {Tunneling Through Sphalerons: The O(3) Sigma-Model on a Cylinder},
author = {Jeroen Snippe},
journal= {arXiv preprint arXiv:hep-th/9405129},
year = {2008}
}
Comments
10 pages, LaTeX, 1 figure appended (uuencoded), Leiden preprint INLO-PUB-5/94