Photoassociative Spectroscopy at Long Range in Ultracold Strontium

Nagel, Sarah; Mickelson, P. G.; Saenz, A.; Martinez, Y. N.; Chen, Ying-Cheng; Killian, T. C.; Pellegrini, Philippe; Côté, Robin

doi:10.1103/physrevlett.94.083004

Cited by 66 publications

(68 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The laser cooling, trapping and manipulation of Rb atoms have been wellestablished at the very beginning of the ultracold matter studies [20]. At present the strontium atom is one of the most popular atomic species in ultracold physics [21,22]: for example, the studies of Bose-Einstein condensation of Sr atoms and Bose-Fermi mixtures (of different Sr isotopes) has recently been reported [23][24][25][26][27]. Moreover, the Innsbruck group has developed the STIRAP scheme to produce weakly bound Sr 2 molecules in ground electronic state.…”

Section: Introductionmentioning

confidence: 99%

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

2014

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

2014

View full text Add to dashboard Cite

show abstract

“…The creation of samples of 88 Sr or 84 Sr atoms in an optical dipole trap (ODT) starts with laser cooling and trapping phases that have been described in detail previously [22,[27][28][29]. Atoms are trapped in a magneto-optical trap (MOT) operating on the 461-nm 1 S 0 -1 P 1 transition (Fig.…”

Section: Methodsmentioning

confidence: 99%

Numerical modeling of collisional dynamics of Sr in an optical dipole trap

et al. 2011

Self Cite

View full text Add to dashboard Cite

We describe a model of inelastic and elastic collisional dynamics of atoms in an optical dipole trap that utilizes numerical evaluation of statistical mechanical quantities and numerical solution of equations for the evolution of number and temperature of trapped atoms. It can be used for traps that possess little spatial symmetry and when the ratio of trap depth to sample temperature is relatively small. We compare simulation results with experiments on 88 Sr and 84 Sr, which have well-characterized collisional properties.

show abstract

“…It also reflects the near-ideal scattering properties of this isotope, which has an s-wave elastic scattering length of a = 122.7(3) a 0 [15], where a 0 = 0.53Å. The ground state scattering properties of all Sr isotopes are well-characterized from one- [29,30,31] and twophoton [15] photoassociative spectroscopy, fourier transform molecular spectroscopy [32], and experiments trap- ping various isotopes in optical traps [33,34]. Our apparatus and experimental sequence for laser cooling atoms and loading them into our optical dipole trap were described in [15,35,36], and a timing diagram is shown in Fig.…”

mentioning

confidence: 98%