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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3775
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dc.contributor.authorSahoo, B. K-
dc.contributor.authorDas, B. P-
dc.date.accessioned2008-09-22T15:35:01Z-
dc.date.available2008-09-22T15:35:01Z-
dc.date.issued2008-06-
dc.identifier.citationPhysical Review A, Vol. 77, No. 6, pp. 062516en
dc.identifier.issn1050-2947-
dc.identifier.urihttp://hdl.handle.net/2248/3775-
dc.description.abstractWe investigate the role of electron correlation effects in the electric-dipole polarizabilities of the ground states of the alkaline earth metals, helium, and ytterbium by employing the relativistic coupled-cluster (RCC) theory. These effects are incorporated via the residual Coulomb interaction to all orders in the RCC singles and doubles approximations. The perturbed wave functions used in the calculations of the polarizabilities are obtained by directly solving the first-order perturbed RCC equations, thereby avoiding the sum-over-states approach. Our results are compared with other calculations and available experimental data.en
dc.language.isoenen
dc.publisherThe American Physical Societyen
dc.relation.urihttp://link.aps.org/abstract/PRA/v77/e062516en
dc.rights© The American Physical Society-
dc.subjectElectron Correlation Effectsen
dc.subjectElectric-Dipole Polarizabilitiesen
dc.subjectAlkaline Earth Metalsen
dc.subjectRelativistic Coupled-Cluster (RCC) Theoryen
dc.titleRelativistic coupled-cluster studies of dipole polarizabilities in closed-shell atomsen
dc.typeArticleen
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