The interplay between the <A^2> condensate and instantons
High Energy Physics - Theory
2011-04-01 v1
Abstract
Using the Local Composite Operator formalism, we analytically study the dimension two gluon condensate in the presence of instantons. We first use the dilute gas approximation and partially solve the infrared problem of instanton physics. In order to find quantitative results, however, we turn to an instanton liquid model, where we find a two-component picture of the condensate: one component comes from instantons, a second component is non-perturbatively generated by quantum fluctuations around the instantons.
Keywords
Cite
@article{arxiv.1102.2074,
title = {The interplay between the <A^2> condensate and instantons},
author = {David Vercauteren and Henri Verschelde},
journal= {arXiv preprint arXiv:1102.2074},
year = {2011}
}
Comments
8 pages, talk presented by David Vercauteren at The Many Faces of QCD, November 1-5, 2010, Ghent, Belgium