New proposal for numerical simulations of theta-vacuum like systems
High Energy Physics - Lattice
2009-11-07 v2 Condensed Matter
High Energy Physics - Theory
Abstract
We propose a new approach to perform numerical simulations of theta-vacuum like systems, test it in two analytically solvable models, and apply it to CP^3. The main new ingredient in our approach is the method used to compute the probability distribution function of the topological charge at theta=0. We do not get unphysical phase transitions (flattening behavior of the free energy density) and reproduce the exact analytical results for the order parameter in the whole theta-range within a few percent.
Keywords
Cite
@article{arxiv.hep-lat/0203017,
title = {New proposal for numerical simulations of theta-vacuum like systems},
author = {Vicente Azcoiti and Giuseppe Di Carlo and Angelo Galante and Victor Laliena},
journal= {arXiv preprint arXiv:hep-lat/0203017},
year = {2009}
}
Comments
4 pages, RevTex4, minor changes and some references added