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Instantons and the ⟨A2⟩ condensate

 

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Opened Access Instantons and the ⟨A2⟩ condensate
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Author: Boucaud, Ph.
Leroy, J. P.
Le Yaouanc, A.
Micheli, A.
Pène, Olivier
de Soto, F.
Donini, A.
Moutarde, H.
Rodríguez Quintero, J.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2002-12-01
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology, 66 (3), 034504-1-034504-5.
Document type: Article
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⟩.
Cite: Boucaud, P., Leroy, J.P., Le Yaouanc, A., Micheli, A., Pène, O., de Soto, F.,...,Rodríguez Quintero, J. (2002). Instantons and the ⟨A2⟩ condensate. Physical Review D - Particles, Fields, Gravitation and Cosmology, 66 (3), 034504-1-034504-5.
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URI: http://hdl.handle.net/11441/62539

DOI: 10.1103/PhysRevD.66.034504

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