(lambda)(phi)4 theory in a time-dependent space-time

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Title:	(lambda)(phi)4 theory in a time-dependent space-time
Author:	Latorre, José Ignacio; Pascual, Pedro, 1934-2006; Tarrach, R., 1948-
Other authors:	Universitat de Barcelona
Abstract:	We study the triviality problem of λ φ 4 theory in a time-dependent space-time within a variational Gaussian approach. A unique, precarious ( λ B ∼-1/lnΛ) phase makes sense. As a consequence, λ R is compelled to lie in the range &, where & depends on the curvature.
Subject(s):	-Mecànica quàntica -Teoria de camps (Física) -Quantum theory -Field theory (Physics)
Rights:	(c) The American Physical Society, 1986
Document type:	Article Article - Published version
Published by:	The American Physical Society
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