Multiplicity of ground states in quantum field models: applications of asymptotic fields

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dc.creatorHiroshima, Fumio
dc.date2004-02-27
dc.date.accessioned2026-07-07T04:30:59Z
dc.date.available2026-07-07T04:30:59Z
dc.descriptionThe ground states of an abstract model in quantum field theory are investigated. By means of the asymptotic field theory, we give a necessary and sufficient condition for that the expectation value of the number operator of ground states is finite, from which we obtain a wide-usable method to estimate an upper bound of the multiplicity of ground states. Ground states of massless GSB models and the Pauli-Fierz model with spin 1/2 are investigated as examples.
dc.identifierhttps://arxiv.org/abs/math-ph/0402075
dc.identifierhttp://arxiv.org/abs/math-ph/0402075
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/57665
dc.subjectMathematical Physics
dc.titleMultiplicity of ground states in quantum field models: applications of asymptotic fields
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