Instantons and the A2 condensate

We argue that the A2OPE condensate found in the Landau gauge on lattices, when an operator product expansion of Green's functions is performed, might be explained by instantons. We use cooling to estimate the instanton contribution and extrapolate back the result to the thermalized configuratio...

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Detalles Bibliográficos
Autores: de Soto, Feliciano, Boucaud, P., Leroy, J. P., Le Yaouanc, A., Micheli, J., Pène, O., Donini, A., Moutarde, H., Rodríguez-Quintero, J.
Tipo de recurso: artículo
Fecha de publicación:2002
País:España
Institución:Universidad Pablo de Olavide (UPO)
Repositorio:RIO. Repositorio Institucional Olavide
Idioma:inglés
OAI Identifier:oai:rio.upo.es:10433/1005
Acceso en línea:http://hdl.handle.net/10433/1005
Access Level:acceso abierto
Palabra clave:Instantons
Landau gauge
Lattice
Descripción
Sumario:We argue that the A2OPE condensate found in the Landau gauge on lattices, when an operator product expansion of Green's functions is performed, might be explained by instantons. We use cooling to estimate the instanton contribution and extrapolate back the result to the thermalized configuration. The resulting A2inst is similar to A2OPE.

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