Monte Carlo determination of the critical coupling in ϕ24 theory
Abstract
We use lattice formulation of ϕ4 theory in order to investigate nonperturbative features of its continuum limit in two dimensions. In particular, by means of Monte Carlo calculations, we obtain the critical coupling constant g /μ2 in the continuum, where g is the unrenormalized coupling. Our final result is g /μ2=11.15 ±0.0 6stat±0.0 3syst .
- Publication:
-
Physical Review D
- Pub Date:
- August 2015
- DOI:
- 10.1103/PhysRevD.92.034509
- arXiv:
- arXiv:1506.08587
- Bibcode:
- 2015PhRvD..92c4509B
- Keywords:
-
- 12.38.Gc;
- 11.15.Ha;
- Lattice QCD calculations;
- Lattice gauge theory;
- High Energy Physics - Lattice
- E-Print:
- Version published on Phys. Rev. D. We added a reference and modified a couple of sentences