Self-energy of One Electron in Non-relativistic Qed
نویسنده
چکیده
Abstract. We investigate the self-energy of one electron coupled to a quantized radiation field by extending the ideas developed in [H]. We fix an arbitrary cut-off parameter Λ and recover the α-term of the selfenergy, where α is the coupling parameter representing the fine structure constant. Thereby we develop a method which allows to expand the selfenergy up to any power of α. This implies that perturbation theory is correct if Λ is fix. As an immediate consequence we obtain enhanced binding for electrons.
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