Nonadditivity and anisotropy of the polarizability of clusters

• Verfasst von: Bezchastnov, Victor G. [VerfasserIn]
• Verfasst von: Pernpointner, Markus [VerfasserIn]
• Verfasst von: Schmelcher, Peter [VerfasserIn]
• Verfasst von: Cederbaum, Lorenz S. [VerfasserIn]
• Titel: Nonadditivity and anisotropy of the polarizability of clusters
• Titelzusatz: relativistic finite-field calculations for the Xe dimer
• Verf.angabe: Victor G. Bezchastnov, Markus Pernpointner, Peter Schmelcher and Lorenz S. Cederbaum
• E-Jahr: 2010
• Jahr: 14 June 2010
• Umfang: 8 S.
• Fussnoten: Gesehen am 31.01.2023
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2010
• Band/Heft Quelle: 81(2010), 6, Artikel-ID 062507, Seite 1-8
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.81.062507
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1832818942

Abstract

We present all-electron relativistic studies of the polarizability properties of the Xe dimer. The studies rely on finite-field calculations of the dimer energies obtained by ab initio methods including electron correlations. An extended set of basis functions is designed in order to ensure a high accuracy of the calculations. Particular attention is paid to the analysis of the nonadditivity and anisotropy of the polarizability of the dimer. It is found that the polarizability of the dimer relative to that of the atoms can be accurately described analytically, at least for internuclear distances around and larger than the equilibrium distance of the dimer.