Mass scaling in photoassociation of spin-singlet atoms

29th International Conference on Photonic, Electronic, and Atomic Collisions

Borkowski, Mateusz^1 ; Morzyski, Piotr^1 ; Ciurylo, Roman^1 ; Zuchowski, Piotr S.^1 ; Julienne, Paul S^2 ; Görlitz, Axel^3 ; Killian, T.C.^4 ; Takahashi, Yoshiro^5

Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, Torun

87-100, Poland^1

Joint Quantum Institute, University of Maryland, National Institute of Standards and Technology, College Park

MD

20742, United States^2

Institut für Experimentalphysik, Heinrich-Heine-Universität Düsseldorf, Universitätstraße 1, Düsseldorf

40225, Germany^3

Rice University, Department of Physics and Astronomy, Houston

TX

77251, United States^4

Department of Physics, Graduate School of Science, Kyoto University, Kyoto

606-8502, Japan^5

关键词: Atomic interactions;    Bound-state energies;    Collisional properties;    Direct measurement;    Ground-state molecules;    Photoassociation;    Photoassociation spectroscopy;    S-wave scattering lengths;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/9/092140/pdf
DOI  :  10.1088/1742-6596/635/9/092140

来源: IOP

【 摘 要 】

Photoassociation spectroscopy, based on forming of molecules from colliding atoms in the presence of light, is a priceless tool for the study of atomic interactions. It enables direct measurements of bound state energies, both in excited and ground state molecules. Applications include determinations of s-wave scattering lengths, as well as atomic state lifetimes. In this work we present the results of our research on the mass-scaling behaviour of molecular bound state energies and collisional properties in spin-singlet atoms. We will concentrate on two such species: strontium and ytterbium, both of which offer several stable isotopes, enabling mass tuning of the system's properties.