Prefer a chat interface with context about you and your work?
Dual Kinetic Balance Approach to Basis-Set Expansions for the Dirac Equation
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 …