| Transition of Ground State of Boson-Fermion Model and Renormalizable Field Theory (2007) | |||||||||||||
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| Recently, mathematical techniques for non-perturbative way to analyze models in quantum electrodynamics (QED) are developing gradually. In the development, we face some cases so that we cannot analyze the ground state energy of models in QED by the regular perturbation theory [LL, Hi, HS]. Especially, | |||||||||||||
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