Validity and meaning of the momentum-translation approximation for bound states in a radiation field
- 1 March 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 9 (3) , 1446-1449
- https://doi.org/10.1103/physreva.9.1446
Abstract
The conditions of validity for the momentum-translation approximation of Reiss are found much more stringent than was thought before: multiphotonic transitions induced by one strong field cannot be described by this method. First-order transitions between bound states dressed by a strong low-frequency field can be calculated, but the method gives nothing but a trivial result; only for the ionization of a dressed atom is the approximation found useful.Keywords
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