Hylleraas-like functions with correct cusp conditions: K-shell electrons for neutral atoms

K. V. RODRIGUEZ, G. GASANEO, D. M. MITNIK AND J. E. MIRAGLIA

Roma, Italia

Congreso; Many particle spectroscopy of atoms, molecules, clusters and surfaces; 2006

We present simple correlated wave functions considering two K-shell active electrons of neutral atoms from He to Xe. We employ a variational method subject to a local potential representing the presence of outher shell electrons. The method is based on the pseudo-separable strategy, originally proposed by Pluvinage. Hylleraas-like wavefunctions are constructed for K-shell electron wavefunctions, in terms of exponential and power series. Hylleraas-like wavefunctions are constructed for K-shell electron wavefunctions, in terms of exponential and power series.