Diverse trends of electron correlation effects for properties with different radial and angular factors in an atomic system: a case study in Ca+

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dc.contributor.author Kumar, Pradeep
dc.contributor.author Li, Cheng-Bin
dc.contributor.author Sahoo, B. K.
dc.date.accessioned 2018-05-07T12:51:13Z
dc.date.available 2018-05-07T12:51:13Z
dc.date.issued 2018-04
dc.identifier.citation Kumar, Pradeep; Li, Cheng-Bin and Sahoo, B. K.,"Diverse trends of electron correlation effects for properties with different radial and angular factors in an atomic system: a case study in Ca+", Journal of Physics B: Atomic, Molecular and Optical Physics, DOI: 10.1088/1361-6455/aaaa12, vol. 51, no. 5, Apr. 2018. en_US
dc.identifier.isbn 1361-6455
dc.identifier.issn 0953-4075
dc.identifier.uri http://dx.doi.org/10.1088/1361-6455/aaaa12
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/3642
dc.description.abstract Dependencies of electron correlation effects with the rank and radial behavior of spectroscopic properties are analyzed in the singly charged calcium ion (Ca+). To demonstrate these trends, we have determined field shift constants, magnetic dipole and electric quadrupole hyperfine structure constants, Lande g J factors, and electric quadrupole moments that are described by electronic operators with different radial and angular factors. Radial dependencies are investigated by comparing correlation trends among the properties that have similar angular factors and vice versa. To highlight these observations, we present results from the mean-field approach to all-orders along with intermediate contributions. Contributions from higher relativistic corrections are also given. These findings suggest that sometime lower-order approximations can give results agreeing with the experimental results, but inclusion of some of higher-order correlation effects can cause large disagreement with the experimental values. Therefore, validity of a method for accurate evaluation of atomic properties can be tested by performing calculations of several properties simultaneously that have diverse dependencies on the angular and radial factors and comparing with the available experimental results. Nevertheless, it is imperative to include full triple and quadrupole excitations in the all-order many-body methods for high-precision calculations that are yet to be developed adopting spherical coordinate system for atomic studies.
dc.description.statementofresponsibility by Pradeep Kumar, Cheng-Bin Li and B K Sahoo
dc.format.extent vol. 51, no. 5
dc.language.iso en en_US
dc.publisher IOP Publishing en_US
dc.title Diverse trends of electron correlation effects for properties with different radial and angular factors in an atomic system: a case study in Ca+ en_US
dc.type Article en_US
dc.relation.journal Journal of Physics B: Atomic, Molecular and Optical Physics


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