Non-Concave Bare Actions with Concave Effective Actions I: Zero Dimensions

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dc.creatorArgyres, E. N.
dc.creatorvan Kessel, M. T. M.
dc.creatorKleiss, R. H. P.
dc.date2005-09-14
dc.date2005-12-08
dc.date.accessioned2026-07-07T06:42:06Z
dc.date.available2026-07-07T06:42:06Z
dc.descriptionWe perform an explicit computation of the effective action for a few zero-dimensional Euclidean field theories in which the bare action exhibits several (or infinitely many) minima. In all cases the effective action is well-defined for all field values, as well as purely concave, in contrast to the bare action. We give arguments against the validity of the naive perturbative approach, which would lead to spontaneous symmetry breaking.
dc.description12 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0509142
dc.identifierhttp://arxiv.org/abs/hep-ph/0509142
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101919
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNon-Concave Bare Actions with Concave Effective Actions I: Zero Dimensions
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