Production of ultracold 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mrow><mml:mi>Cs</mml:mi></mml:mrow><mml:mo>*</mml:mo></mml:msup><mml:mi>Yb</mml:mi></mml:mrow></mml:math>
 molecules by photoassociation

Guttridge, Alexander; Hopkins, S. A.; Frye, Matthew D.; McFerran, J. J.; Hutson, Jeremy M.; Cornish, Simon L.

doi:10.1103/physreva.97.063414

Cited by 31 publications

(24 citation statements)

References 87 publications

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“…The n = −1 level of Cs 174 Yb was measured with both n = −13 and n = −17 as intermediate states to verify that the measurements are of the ground electronic state and not two-photon transitions to a higher-energy electronic state. We chose to use intermediate states with moderately large binding energies to increase the detuning of the photoassociation light from the Cs D 1 transition; a greater feature depth is observed for larger detuning due to the reduction of off-resonant Cs losses [77].…”

Section: Resultsmentioning

confidence: 99%

Two-photon photoassociation spectroscopy of CsYb: Ground-state interaction potential and interspecies scattering lengths

et al. 2018

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We perform two-photon photoassociation spectroscopy of the heteronuclear CsYb molecule to measure the binding energies of near-threshold vibrational levels of the X 2 Σ + 1/2 molecular ground state. We report results for 133 Cs 170 Yb, 133 Cs 173 Yb and 133 Cs 174 Yb, in each case determining the energy of several vibrational levels including the least-bound state. We fit an interaction potential based on electronic structure calculations to the binding energies for all three isotopologs and find that the ground-state potential supports 77 vibrational levels. We use the fitted potential to predict the interspecies s-wave scattering lengths for all seven Cs+Yb isotopic mixtures.

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Section: Resultsmentioning

confidence: 99%

Two-photon photoassociation spectroscopy of CsYb: Ground-state interaction potential and interspecies scattering lengths

et al. 2018

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“…The relations in this subsection, derived for a homogeneous system, hold in the lattice, provided one reinterprets the kinetic energy term ∆E q according to Eq. (20). In particular Eq.…”

Section: Equal Massesmentioning

confidence: 99%

Adiabaticity when raising a uniform three-dimensional optical lattice in a bimodal Bose-Einstein condensate

2018

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Using the time-dependent Bogoliubov approach, we study adiabaticity for a two-component Bose-Einstein condensate in a 3D time-dependent optical lattice with unit filling, in the superfluid and weakly interacting regime. We show that raising the lattice potential height can couple the ground state of the Bogoliubov Hamiltonian to excited states with two quasiparticles of opposite quasimomenta. In the symmetric case for interactions and density in the two components these represent sound waves where the two components oscillate out of phase. We find an analytic expression of the adiabatic time, its dependence on the fraction of atoms in each component and its scaling with the system size.

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“…The signal strength fell to 75% of that for the vertically polarised light. Using the curve fitting procedure described above, the mean separation was found to be 2.687 (13) [47] [i] Clark, 1979 [60] [iii] Pandey, 2009 [34] [iii] FIG. 8.…”

Section: Isotopic Shifts Hyperfine Separations and Systematicsmentioning

confidence: 99%

“…Neutral ytterbium is exploited in a range of atomic physics experiments. In ultracold gases, studies include, Bose-Einstein condensates in lattices [1][2][3], degenerate Fermi gases [4][5][6][7], artificial gauge potentials [8][9][10], quantum many-body simulations [11,12], and ultracold molecules [13,14]. In parallel, ytterbium has been used to develop one of the world's most accurate atomic frequency references [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Hyperfine constants and line separations for the S01−P13 intercombination line in neutral ytterbium with sub-Doppler resolution

Atkinson

Schelfhout

2019

Phys. Rev. A

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Optical frequency measurements of the intercombination line (6s 2 ) 1 S0 −(6s6p) 3 P1 in the isotopes of ytterbium are carried out with the use of sub-Doppler fluorescence spectroscopy on an atomic beam. A dispersive signal is generated to which a master laser is locked, while frequency counting of an auxiliary beat signal is performed via a frequency comb referenced to a hydrogen maser. The relative separations between the lines are used to evaluate the 3 P1-level magnetic dipole and electric quadrupole constants for the fermionic isotopes. The center of gravity for the 3 P1 levels in 171 Yb and 173 Yb are also evaluated, where we find significant disagreement with previously reported values. These hyperfine constants provide a valuable litmus test for atomic many-body computations in ytterbium.

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Production of ultracold Cs*Yb molecules by photoassociation

Cited by 31 publications

References 87 publications

Two-photon photoassociation spectroscopy of CsYb: Ground-state interaction potential and interspecies scattering lengths

Two-photon photoassociation spectroscopy of CsYb: Ground-state interaction potential and interspecies scattering lengths

Adiabaticity when raising a uniform three-dimensional optical lattice in a bimodal Bose-Einstein condensate

Hyperfine constants and line separations for the S01−P13 intercombination line in neutral ytterbium with sub-Doppler resolution

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