Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1994-11-23
Nucl.Phys.Proc.Suppl. 42 (1995) 808
Physics
High Energy Physics
High Energy Physics - Lattice
Contribution to LATTICE 94. 3 pages, PostScript file
Scientific paper
10.1016/0920-5632(95)00388-P
We describe a method to compute renormalized coupling constants in a Monte Carlo renormalization group calculation. It can be used, e.g., for lattice spin or gauge models. The basic idea is to simulate a joint system of block spins and canonical demons. Unlike the Microcanonical Renormalization Group of Creutz et al. it avoids systematical errors in small volumes. We present numerical results for the O(3) nonlinear sigma-model.
Hasenbusch Martin
Pinn Klaus
Wieczerkowski Christian
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