An improved lattice measurement of the critical coupling in phi^4_2 theory
| dc.creator | Schaich, David | |
| dc.creator | Loinaz, Will | |
| dc.date | 2009-01-31 | |
| dc.date.accessioned | 2026-07-07T13:13:25Z | |
| dc.date.available | 2026-07-07T13:13:25Z | |
| dc.description | We use Monte Carlo simulations to obtain an improved lattice measurement of the critical coupling constant [lambda / mu^2]_crit for the continuum (1 + 1)-dimensional (lambda / 4) phi^4 theory. We find that the critical coupling constant depends logarithmically on the lattice coupling, resulting in a continuum value of [lambda / mu^2]_crit = 10.8(1), in considerable disagreement with the previously reported [lambda / mu^2]_crit = 10.26(8). Although this logarithmic behavior was not observed in earlier lattice studies, it is consistent with them, and expected analytically. | |
| dc.description | 14 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0902.0045 | |
| dc.identifier | http://arxiv.org/abs/0902.0045 | |
| dc.identifier | Phys.Rev.D79:056008,2009 | |
| dc.identifier | doi:10.1103/PhysRevD.79.056008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/229882 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.subject | Statistical Mechanics | |
| dc.title | An improved lattice measurement of the critical coupling in phi^4_2 theory | |
| dc.type | text |