Relaxation via spontaneous emission of bosons: Non-Markovian approach
- 1 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (2) , 546-558
- https://doi.org/10.1103/physreva.37.546
Abstract
An isomorphism is established between the configurational interaction of one discrete level with a continuum, and a relaxation via spontaneous emission of bosons in one-boson approximation. Conditions of one-boson approximation are derived. This approach enables one to overcome limitations of the Markovian or Weisskopf-Wigner approximations. The results qualitatively differ from those obtained in the master-equation approach. In a general case, the probability to remain in an excited state has asymptotically oscillatory behavior, unlike in the Weisskopf-Wigner approximation in which it tends to zero.Keywords
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