Structure and interactions of ultracold Yb ions and Rb atoms

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dc.contributor.authorLamb, H. D. L.
dc.contributor.authorMcCann, J. F.
dc.contributor.authorMcLaughlin, B. M.
dc.contributor.authorGoold, John
dc.contributor.authorWells, N.
dc.contributor.authorLane, I.
dc.contributor.funderDepartment for Employment and Learning, Northern Ireland
dc.contributor.funderFP7 People: Marie-Curie Actions
dc.contributor.funderQueen's University Belfast
dc.date.accessioned2017-08-22T10:30:37Z
dc.date.available2017-08-22T10:30:37Z
dc.date.issued2012
dc.description.abstractIn order to study ultracold charge-transfer processes in hybrid atom-ion traps, we have mapped out the potential-energy curves and molecular parameters for several low-lying states of the Rb, Yb+ system. We employ both a multireference configuration interaction and a full configuration interaction (FCI) approach. Turning points, crossing points, potential minima, and spectroscopic molecular constants are obtained for the lowest five molecular states. Long-range parameters, including the dispersion coefficients, are estimated from our ab initio data. The separated-atom ionization potentials and atomic polarizability of the ytterbium atom (alpha(d) = 128.4 atomic units) are in good agreement with experiment and previous calculations. We present some dynamical calculations for (adiabatic) scattering lengths for the two lowest (Yb, Rb+) channels that were carried out in our work. However, we find that the pseudopotential approximation is rather limited in validity and only applies to nK temperatures. The adiabatic scattering lengths for both the triplet and singlet channels indicate that both are large and negative in the FCI approximation.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid22716
dc.identifier.citationLamb, H. D. L., McCann, J. F., McLaughlin, B. M., Goold, J., Wells, N. and Lane, I. (2012) 'Structure and interactions of ultracold Yb ions and Rb atoms', Physical Review A, 86(2), 022716 (7pp). doi: 10.1103/PhysRevA.86.022716en
dc.identifier.doi10.1103/PhysRevA.86.022716
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.issued2
dc.identifier.journaltitlePhysical Review Aen
dc.identifier.urihttps://hdl.handle.net/10468/4497
dc.identifier.volume86
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/229520/EU/IRCSET International Mobility Fellowships in Science Engineering and Technology: co-funded by Marie Curie Actions/INSPIRE
dc.relation.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.86.022716
dc.rights© 2012, American Physical Societyen
dc.subjectDipole polarizabilitiesen
dc.subjectAlkali-metalsen
dc.subjectColden
dc.subjectPhotoassociationen
dc.subjectScatteringen
dc.subjectCollisionsen
dc.subjectYtterbiumen
dc.subjectSpectraen
dc.titleStructure and interactions of ultracold Yb ions and Rb atomsen
dc.typeArticle (peer-reviewed)en
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