Electronic Structure Critical Parameters From Finite-Size Scaling

JUAN PABLO NEIROTTI; PABLO SERRA; SABRE KAIS

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Lugar: New York; Año: 1997 vol. 79 p. 3142 - 3145

0031-9007

We present finite-size scaling and phenomenological renormalization equations for calculations ofthe critical points of the electronic structure of atoms and molecules. Results show that the methodis efficient and very accurate for estimating the critical screening length for one-electron screenedCoulomb potentials and the critical nuclear charge for two-electron atoms. The method has potentialapplicability for many-body quantum systems.