Scaling topological charge in the CP^3 spin model
High Energy Physics - Lattice
2009-10-22 v1
Abstract
The CP^3 spin model is simulated at large correlation lengths in two dimensions. An overrelaxation algorithm is employed which yields reduced critical slowing down with dynamical exponents z around unity. We compare our results with recent multigrid data on the massgap m and the spin susceptibility and confirm the absence of asymptotic scaling. As a new result we find scaling for the universal topological susceptibility with values extrapolating to chi_t / m^2 = 0.156(2) in the continuum limit.
Cite
@article{arxiv.hep-lat/9205001,
title = {Scaling topological charge in the CP^3 spin model},
author = {Ulli Wolff},
journal= {arXiv preprint arXiv:hep-lat/9205001},
year = {2009}
}
Comments
11 pages, 3 ps-figures