Vacuum energy of two-dimensional N=(2,2) super Yang-Mills theory
High Energy Physics - Lattice
2009-07-09 v3 High Energy Physics - Theory
Abstract
We measure the vacuum energy of two-dimensional N=(2,2) super Yang-Mills theory using lattice simulation. The obtained vacuum energy density is E_0=0.09(9)(+10-8) g^2, where the first error is the systematic and the second is the statistical one, measured in the dimensionful gauge coupling g which governs the scale of the system. The result is consistent with unbroken supersymmetry, although we cannot exclude a possible very small non-zero vacuum energy.
Cite
@article{arxiv.0902.2876,
title = {Vacuum energy of two-dimensional N=(2,2) super Yang-Mills theory},
author = {Issaku Kanamori},
journal= {arXiv preprint arXiv:0902.2876},
year = {2009}
}
Comments
6 pages, 6 figures; v2, a reference added, typos corrected; v3, discussion on treatment of Pfaffian is extended (3 figures added), explanation on treatment of the scalar mass is improved, introduction is extended, references are added. To appear PRD