Lattice versus 2PI: 2d O(N) model at nonzero T
High Energy Physics - Phenomenology
2012-10-18 v1 High Energy Physics - Lattice
Abstract
The thermodynamics of the O(N) model in 1+1 dimensions is studied applying the CJT formalism and the auxiliary field method as well as fully nonperturbative finite temperature lattice simulations. The numerical results for the renormalized mass of the scalar particles, the pressure and the trace anomaly are presented and compared with the results from lattice simulation of the model. We find that when going to the two loop order we observe a good correspondence between the CJT formalism and the lattice study.
Cite
@article{arxiv.1210.4744,
title = {Lattice versus 2PI: 2d O(N) model at nonzero T},
author = {Elina Seel and Dominik Smith and Stefano Lottini and Francesco Giacosa},
journal= {arXiv preprint arXiv:1210.4744},
year = {2012}
}
Comments
6 pages, 2 figures, Contribution to the International Meeting "Excited QCD", Peniche, Portugal, 06 - 12 May 2012