9 papers
Is there a third-order phase transition in quenched QCD?
L. Li, Y. Meurice
We discuss the connection between the contributions of large field configurations and the large order behavior of perturbation theory. For quenched QCD, the sensitivity of the aver…
Universal Crossover in Perturbation Theory with a Large Field Cutoff
L. Li, Y. Meurice
For lambda phi^4 models, the introduction of a large field cutoff improves significantly the accuracy that can be reached with perturbative series but the calculation of the modifi…
Large Field Cutoffs in Lattice Gauge Theory
L. Li, Y. Meurice
In pure gauge SU(3) near beta = 6, weak and strong coupling expansions break down and the MC method seems to be the only practical alternative. We discuss the possibility of using…
The continuum limit of perturbative coefficients calculated with a large field cutoff
L. Li, Y. Meurice
We report MC calculations of perturbative coefficients for lattice scalar field theory in dimensions 1, 2 and 3, where the large field contributions are cutoff. This produces conve…
From nonlinear scaling fields to critical amplitudes
Y. Meurice, S. Niermann
We propose to combine the nonlinear scaling fields associated with the high-temperature (HT) fixed point, with those associated with the unstable fixed point, in order to calculate…
Examples of overlapping convergent expansions of scaling variables
Y. Meurice, S. Niermann
We construct series expansions for the scaling variables (which transform multiplicatively under a renormalization group (RG) transformation) in examples where the RG flows, going…