Phys. Rev. A 60, 1280–1286 (1999)Perturbation theory for multiphoton ionization without knowledge of the final-state wave functionSee Also: Erratum Received 5 October 1998; revised 1 March 1999; published in the issue dated August 1999 We show how the inclusive rate of decay of an atomic system by absorption of any number N of photons can be calculated at Nth order of perturbation theory without employing the final-state (continuum) wave function. We give a computationally useful formula which involves only the response function for a system perturbed by absorption of N photons. In the case of a two-electron system, the contributions to the inclusive rate from individual channels can be separated using projection operators. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.60.1280
DOI:
10.1103/PhysRevA.60.1280
PACS:
32.80.Wr, 32.90.+a
See AlsoErratum: Robin Shakeshaft, Erratum: Perturbation theory for multiphoton ionization without knowledge of the final-state wave function [Phys. Rev. A 60, 1280 (1999)], Phys. Rev. A 60, 4198 (1999). |
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