Physics – Atomic Physics
Scientific paper
2003-08-22
Phys. Rev. Lett. 93, 130405 (2004)
Physics
Atomic Physics
14 pages, 1 table
Scientific paper
10.1103/PhysRevLett.93.130405
A new approach to finite basis sets for the Dirac equation is developed. It
solves the problem of spurious states and, as a result, improves the
convergence properties of basis set calculations. The 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.
Plunien Guenter
Shabaev Vladimir M.
Soff Gerhard
Tupitsyn I. I.
Yerokhin Vladimir A.
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