2024-03-29T05:48:36Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/697732022-11-17T02:08:08Zhdl_2115_45007hdl_2115_116Spectral Analysis of an Effective Hamiltonian in Nonrelativistic Quantum ElectrodynamicsArai, Asaoopen accesseffective HamiltonianLamb shiftnonrelativistic quantum electrodynamicsspectrum410We 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.Department of Mathematics, Hokkaido University2010-08-20engdepartmental bulletin paperVoRhttps://doi.org/10.14943/84113http://hdl.handle.net/2115/6977310.14943/84113Hokkaido University Preprint Series in Mathematics966133https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/69773/1/pre966.pdfapplication/pdf192.08 KB2010-08-20