Relativistic density functional theory of the H atom in terms of a difference equation
Abstract
In recent work, Howard and March [J. Phys. A: Math. Gen. 37 (2003) 965] have proposed a relativistic density functional theory of harmonically confined independent fermions in terms of a difference equation. Here, a corresponding relativistic difference equation is proposed and solved for hydrogenlike atomic ions for arbitrary atomic number. For a point nucleus, the singularity predicted by Dirac's oneelectron wave equation is thereby avoided.
 Publication:

Physics Letters A
 Pub Date:
 October 2004
 DOI:
 10.1016/j.physleta.2004.08.039
 Bibcode:
 2004PhLA..331....8M