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Bohr’s correspondence principle for the renormalized Nelson model. (English) Zbl 1394.35383

The purpose of this paper is to study the Schrödinger-Klein-Gordon (S-KG) equation coupled with dressed interaction (S-KG[D]). The main theorem states that the Bohr correspondence principle holds between the renormalized Nelson model and the S-KG classical flow. First the dressing transform is introduced followed by renormalization. Then the Yukawa-type interaction is defined followed by the classical Hamiltonians. The proofs use dominated convergence theorem, Fubini theorem, Gronwall lemma, Strichart estimate, Hölder, Schwartz inequalities.

MSC:

35Q40 PDEs in connection with quantum mechanics
81T16 Nonperturbative methods of renormalization applied to problems in quantum field theory
81Q20 Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory

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