Field transformation and Monte Carlo simulations

DOI10.1016/S0920-5632(99)85225-6zbMATH Open1051.81632arXivhep-lat/9810055MaRDI QIDQ5961408

M. Pepe

Publication date: 24 April 2002

Published in: Nuclear Physics. B. Proceedings Supplements (Search for Journal in Brave)

Abstract: A new method to compute observables at many values of the parameters lambda for a model with lattice action {cal{S}}(phi, lambda) is described. After fixing a reference set lambda^r of parameters, a single simulation is carried out by using a ``reference action {cal{S}} (phi^r, lambda^r) to generate configurations of the field phi^r. Then a suitable analytic transformation is performed from the configurations of phi^r to the ones corresponding to the action {cal{S}} (phi, lambda). Such a transformation allows to obtain the observables for values of the parameters lambda close to lambda^r. I present studies on the reliability of the algorithm in the case of the phi^4 model in 2 dimensions.

Full work available at URL: https://arxiv.org/abs/hep-lat/9810055

zbMATH Keywords

algorithmlattice actionfield configuration generation

Mathematics Subject Classification ID

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