10-156 Asao Arai

Spectral Analysis of an Effective Hamiltonian in Nonrelativistic Quantum Electrodynamics (261K, pdf) Sep 26, 10

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Abstract. We investigate spectral properties of an effective Hamiltonian which is obtained as a scaling limit of the Pauli-Fierz model in nonrelativistic quantum electrodynamics. The Lamb shift of a hydrogen-like atom is derived as the lowest order approximation (in the fine structure constant) of an energy level shift of the effective Hamiltonian.

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