2014/10/27 by P. Giannakeas, F. Robicheaux, Chris H. Greene
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Chemistry #Field (mathematics) #Ion #Ionization #Laser-Matter Interactions and Applications #Mathematics #Observable #Photoionization #Photon #Physics #Pure mathematics #Quantum #Quantum Information and Cryptography #Quantum defect #Quantum mechanics #Rydberg formula #Spectroscopy and Quantum Chemical Studies #Transformation (genetics) #quant-ph
paper · pdf · doi:10.1103/physreva.91.043424
corrected typos, added references
arxiv created 2014/10/27 · openalex publication_date 2015/04/30 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Two-photon ionization of an alkali-metal atom in the presence of a uniform electric field is investigated using a standardized form of the local-frame-transformation and generalized quantum defect theory. The relevant long-range quantum defect parameters in the combined Coulombic plus Stark potential are calculated with eigenchannel R-matrix theory applied in the downstream parabolic coordinate \ensuremathη. The present formulation permits us to express the corresponding microscopy observables through the local frame transformation, and it gives a critical test of the accuracy of the Harmin-Fano theory.