Merging of photons in the field of a multielectron atom: Higher orders of perturbation theory

The contribution of higher orders of relativistic quantum perturbation theory to the differential cross section for the merging of three X-ray photons into one photon in the field of a multielectron atom has been studied in the Tamm–Dankov approximation. It has been shown that higher orders do not c...

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Bibliographic Details
Published in:JETP letters 2017-07, Vol.106 (2), p.116-119
Main Authors: Hopersky, A. N., Nadolinsky, A. M., Yavna, V. A.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Methods of Theoretical Physics
Molecular
Optical and Plasma Physics
Particle and Nuclear Physics
Perturbation theory
Photons
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spintronics
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Summary:The contribution of higher orders of relativistic quantum perturbation theory to the differential cross section for the merging of three X-ray photons into one photon in the field of a multielectron atom has been studied in the Tamm–Dankov approximation. It has been shown that higher orders do not change the physical results obtained in the leading (second) order of perturbation theory.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364017140065