In this paper, we derive the Wigner-Weisskopf approximation by the perturbation theory of Lindstedt and Poincare, and show that the approximation actually corresponds to the lowest perturbative term.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering