Spontaneous emission and atomic line shift in causal perturbation theory
| Autor: | Bryce Fitzgerald, Karl-Peter Marzlin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Quantum Physics Causal perturbation theory Distribution (number theory) 010308 nuclear & particles physics FOS: Physical sciences Statistical and Nonlinear Physics Electron 01 natural sciences Cutoff frequency Atomic mass 0103 physical sciences Spontaneous emission Physics::Atomic Physics Atomic physics 010306 general physics Quantum Physics (quant-ph) Mathematical Physics Radioactive decay Bohr radius |
| Popis: | We derive spontaneous emission rate and line shift for two-level atoms coupled to the radiation field using causal perturbation theory. In this approach, employing the theory of distribution splitting prevents the occurrence of divergent integrals. Our method confirms the result for atomic decay rate but suggests that the cutoff frequency for the atomic line shift is determined by the atomic mass, rather than Bohr radius or electron mass. 8 pages, 2 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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