Structure and spectroscopy of ground and excited states of LiYb

Zhang, Peng; Sadeghpour, H. R.; Dalgarno, A.

doi:10.1063/1.3462245

Cited by 38 publications

(47 citation statements)

References 57 publications

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“…The potential curve of Zhang et al [17] supports 24 bound states for 6 LiYb. However, it is probably accurate to only a few percent, and variations within this uncertainty are enough to span the entire range of scattering length a from þ1 to À1.…”

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confidence: 93%

“…In the present Letter we consider the topical system Li þ Yb, which is under experimental investigation by at least two groups and has also been investigated using electronic structure calculations [16,17]. We show that the mechanism we previously proposed does produce Feshbach resonances in this system, but that for bosonic (spin-zero) isotopes of Yb they are extremely narrow.…”

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confidence: 99%

“…The resulting quantities Á ðRÞ are shown in Fig. 1 Zhang et al [17] have carried out detailed studies of the potential curves of the ground and excited states of LiYb. In the present work, we used their CCSD(T)/ECP potential points [22], obtained from large-basis coupledcluster calculations using a fully relativistic effective core potential for Yb and including counterpoise corrections.…”

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confidence: 99%

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Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures

2012

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures

2012

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“…The resulting potential curves are shown in Fig. 2, together with the LiYb curve of Zhang et al [38], obtained using similar methods but with a fully relativistic ECP for Yb. The well depths and equilibrium distances are given in Table I.…”

Section: Potential Energy Curvesmentioning

confidence: 99%

Prospects of forming ultracold molecules in2Σstates by magnetoassociation of alkali-metal atoms with Yb

2013

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Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. We explore the feasibility of producing ultracold diatomic molecules with nonzero electric and magnetic dipole moments by magnetically associating two atoms, one with zero electron spin and one with nonzero spin. Feshbach resonances arise through the dependence of the hyperfine coupling on internuclear distance. We survey the Feshbach resonances in diatomic systems combining the nine stable alkali-metal isotopes with those of Yb, focusing on the illustrative examples of RbYb and CsYb. We show that the resonance widths may expressed as a product of physically comprehensible terms in the framework of Fermi's golden rule. The resonance widths depend strongly on the background scattering length, which may be adjusted by selecting the Yb isotope, and on the hyperfine coupling constant and the magnetic field. In favorable cases the resonances may be over 100 mG wide.

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“…That might allow the experimentalist to modify the scattering length in the ultracold mixture of Rb and Sr and control the behaviour of quantum gas of such atoms. It is worth mentioning that several other similar species are subject to intense ongoing research, like YbLi [30][31][32][33][34] and YbRb [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Ground- and excited-state properties of the polar and paramagnetic RbSr molecule: A comparative study

2014

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This paper deals with the electronic structure of RbSr, a molecule possessing both a permanent magnetic and electric dipole moment in its own frame allowing its manipulation with external fields. Two complementary ab-initio approaches are used for the ground and lowest excited states: first, an approach relying on optimized effective core potentials with core polarization potentials based on a full configuration interaction involving three valence electrons, and second, an approach using a small-size effective core potential with 19 correlated electrons in the framework of coupled-cluster theory. We have found excellent agreement between these two approaches for the ground state properties including the permanent dipole moment. We have focused on studies of excited states correlated to the two lowest asymptotes Rb(5p 2 P )+Sr(5s 2 1 S) and Rb(5s 2 S)+Sr(5s5p 3 P ) relevant for ongoing experiments on quantum degenerate gases. We present also the Hund c) case potential curves obtained using atomic spin-orbit constants. These potential curves are an excellent starting point for experimental studies of molecular structure of RbSr using high-resolution spectroscopy.

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Structure and spectroscopy of ground and excited states of LiYb

Cited by 38 publications

References 57 publications

Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures

Magnetically Tunable Feshbach Resonances in Ultracold Li-Yb Mixtures

Prospects of forming ultracold molecules in2Σstates by magnetoassociation of alkali-metal atoms with Yb

Ground- and excited-state properties of the polar and paramagnetic RbSr molecule: A comparative study

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