Comment on "Multiphoton-ionization transition amplitudes and the Keldysh approximation"

We show that the approach of Trombetta, Basile, and Ferrante (Phys. Rev. A 40, 2774 (1989)) does not establish the Keldysh ansatz as a well-defined approximation. In particular, it in effect replaces a vanishing contribution to the ionization rate by a nonvanishing one.

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 1990-04, Vol.41 (7), p.4095-4095
Main Authors: Neto, HS, Davidovich, L, Milonni, PW
Format: Article
Language:English
Subjects:
ACCURACY
AMPLITUDES
ATOMIC AND MOLECULAR PHYSICS
ATOMS
IONIZATION 640302 > Atomic, Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
MATHEMATICAL MODELS
MULTI-PHOTON PROCESSES
PHOTOIONIZATION
TRANSITION AMPLITUDES
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Summary:We show that the approach of Trombetta, Basile, and Ferrante (Phys. Rev. A 40, 2774 (1989)) does not establish the Keldysh ansatz as a well-defined approximation. In particular, it in effect replaces a vanishing contribution to the ionization rate by a nonvanishing one.
ISSN:1050-2947
0556-2791
1094-1622
DOI:10.1103/PhysRevA.41.4095