Structure and interactions of ultracold Yb ions and Rb atoms

Show simple item record Lamb, H. D. L. McCann, J. F. McLaughlin, B. M. Goold, John Wells, N. Lane, I. 2017-08-22T10:30:37Z 2017-08-22T10:30:37Z 2012
dc.identifier.citation Lamb, 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.86.022716 en
dc.identifier.volume 86
dc.identifier.issued 2
dc.identifier.issn 1050-2947
dc.identifier.issn 1094-1622
dc.identifier.doi 10.1103/PhysRevA.86.022716
dc.description.abstract In 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society en
dc.rights © 2012, American Physical Society en
dc.subject Dipole polarizabilities en
dc.subject Alkali-metals en
dc.subject Cold en
dc.subject Photoassociation en
dc.subject Scattering en
dc.subject Collisions en
dc.subject Ytterbium en
dc.subject Spectra en
dc.title Structure and interactions of ultracold Yb ions and Rb atoms en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother John Goold, Physics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000308125600008
dc.contributor.funder Department for Employment and Learning, Northern Ireland
dc.contributor.funder FP7 People: Marie-Curie Actions
dc.contributor.funder Queen's University Belfast
dc.description.status Peer reviewed en
dc.identifier.journaltitle Physical Review A en
dc.internal.IRISemailaddress en
dc.identifier.articleid 22716
dc.relation.project info: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

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