Abstract
In the framework of the weakly-coupledP(φ)2-models we construct perturbation approximations of vectors of a dense set of the state space, especially vectors of the one-particle state subspace, by polynomials of zero-time fields acting on the vacuum state, with rigorous control of the remainders.
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Frochaux, E.: Some analytic results about weakly-coupledP(φ)2 models. Rapport interne du Département de Mathématique, Ecole Polytechnique Fédérale de Lausanne, Suisse. In preparation. The bound-states in Quantum Field Theory: review of some analytic problems of the variational perturbation method (submitted for publication)
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Communicated by A. Jaffe
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Frochaux, E. Zero-time one-particle states in quantum field theory. Commun.Math. Phys. 136, 15–33 (1991). https://doi.org/10.1007/BF02096788
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DOI: https://doi.org/10.1007/BF02096788