Dispersion coefficients for Li⁺–H and Li⁺–He systems with coulomb and screened coulomb potentials

Abstract

Exploiting powerful computational aspects and highly correlated exponential wave functions for two‐electron atoms, we have investigated the effects of screened Coulomb interaction on the hexadecapole polarizability of Li+(11S), and the dispersion coefficients C6, C8, C10, and C12 for interaction of Li+ with H and He atoms in their ground states. The dispersion coefficients and hexadecapole polarizability for different screening parameters ranging from 0 to 1.0 a 0−1 are reported. In the unscreened case, the hexadecapole polarizability of Li+, and the dispersion C12 coefficients for Li+–H and Li+–He system are reported for the first time in the literature. The C6, C8, and C10 coefficients for the unscreened cases are comparable with the reported results. © 2011 Wiley Periodicals, Inc. Int J Quantum Chem, 2011

Construction of BAC‐based physical map and analysis of chromosome rearrangement in chinese hamster ovary cell lines

“…The effect of plasma screening on the atomic systems has gained considerable attention in recent years 1–5. Very recently, we have investigated the plasma screening effects on the polarizabilities of alkali atoms within the framework of Debye shielding approach of plasma modeling using the symplectic algorithm 6.…”

Dynamic polarizability of two-electron ions under Debye screening

“…For the two‐component plasmas near thermodynamic equilibrium the Debye screening length can be written as where is the Boltzmann constant, and are the number density of the plasma electrons and temperature, respectively, is the effective charge of the ions in the embedded plasma. Details on atomic processes under Debye screening can be found form earlier articles in the literature . The significance of screened coulomb potential of Debye type for kappa‐distribution plasma has been focused in earlier articles …”

“…The study of atomic systems embedded in plasma environments is of great importance as this process has been used for plasma diagnostics and several other spectroscopic applications . Several spectral or structural properties of plasma embedded atoms, ions, molecules have been studied based on the Debye shielding approach to plasma modeling . The purpose of this article is to report the behavior of the dynamic dipole polarizabilities (DPP) of two‐electron ions Be 2+ , B 3+ , C 4+ under the influence of Debye plasmas screening.…”