Instantons and the A (2) condensate

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Instantons_and_condesate.pdf (123.5 KB)

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2002

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Ciencias Integradas

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http://hdl.handle.net/10272/10497

Abstract

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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Boucaud, Ph., Leroy, J.P., Le Yaouanc, A., Micheli, J., Pène, O., Soto Borrero, F.C., Donini, A., Moutarde, H., Rodríguez Quintero, J.: "Instantons and the A (2) condensate". Physical Review D. Vol. 66, n. 3, (2002). ISSN 1550-7998

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