The combination of R-matrix and complex coordinate methods: application to resonances in the diamagnetic Rydberg spectrum of Li
- 14 November 1992
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 25 (21) , L525-L532
- https://doi.org/10.1088/0953-4075/25/21/002
Abstract
The R-matrix and complex coordinate techniques are combined for the first time and applied to the problem of the positive energy spectrum of a non-hydrogenic atom in a laboratory strength magnetic field. Quantum defect theory is extended to calculate the appropriate irregular Coulomb function at complex energy and complex radial distance. Calculations are carried out for lithium to compare with previous experimental measurements and with a corresponding calculation for hydrogen.Keywords
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