Proposal of a renormalization group transformation for lattice field theories

We propose a new real space renormalization group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we de6ne the block-spin transformation with two tunable free parameters, adapted to the system's action. Varying them it is...

ver descrição completa

Detalhes bibliográficos
Autores: Fernández Pérez, Luis Antonio, Muñoz Sudupe, Antonio, Ruiz Lorenzo, J. J.
Formato: artículo
Fecha de publicación:1994
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/60108
Acesso em linha:https://hdl.handle.net/20.500.14352/60108
Access Level:acceso abierto
Palavra-chave:53
51-73
Gauge-theory
Su(3)
Física (Física)
Física-Modelos matemáticos
22 Física
Descrição
Resumo:We propose a new real space renormalization group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we de6ne the block-spin transformation with two tunable free parameters, adapted to the system's action. Varying them it is possible to place the Sxed point very close to the simulation point. We show how the method works in a simple model with global symmetry: the three dimensional XY model.