Dual Kinetic Balance Approach to Basis-Set Expansions for the Dirac Equation
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- 22 September 2004
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 93 (13), 130405
- https://doi.org/10.1103/physrevlett.93.130405
Abstract
A new approach to finite basis sets for the Dirac equation is developed. It does not involve spurious states and improves the convergence properties of basis-set calculations. Efficiency of the method is demonstrated for finite basis sets constructed from B splines by calculating the one-loop self-energy correction for a hydrogenlike ion.Keywords
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