Ultracold collisions in the Yb-Li mixture system

• Schäfer, Florian

  Department of Physics, Graduate School of Science, Kyoto University

• Konishi, Hideki

  Department of Physics, Graduate School of Science, Kyoto University

• Bouscal, Adrien

  Département de Physique, École Normale Supérieure, PSL Research University

• Yagami, Tomoya

  Department of Physics, Graduate School of Science, Kyoto University

• Frye, D. Matthew

  Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry, University of Durham

• Hutson, M. Jeremy

  Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry, University of Durham

• Takahashi, Yoshiro

  Department of Physics, Graduate School of Science, Kyoto University

Abstract

We report our experimental results on the collisional physics between non-S-state atoms (ytterbium (Yb), effectively a two-electron system, in the metastable ³P₂ state) and S-state atoms (lithium (Li), an alkali metal, in the ground state). At low magnetic fields, by measuring inelastic interspecies collisional losses in the double quantum degenerate mixture we reveal the strong dependence of the inelastic losses on the internal spin states of both species and suppressed losses in stretched state configurations. Increasing the magnetic field up to 800 G we further investigate the magnetic field dependence of the collisional interactions. There, smoothly increasing inelastic losses are observed towards higher fields. The combined knowledge of both the magnetic field and the spin state dependence of the collisional losses of this prototypical mixture system of non-S-state and S-state atoms provides a significant step forward towards controllable impurity physics realized in the Yb-Li ultracold system.

31st International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC XXXI) 23-30 July 2019, Deauville, France

Journal

• Journal of Physics: Conference Series(ICPEAC2019)

  Journal of Physics: Conference Series(ICPEAC2019) 1412 (2020), 062005-, 2020-06-11

  IOP Publishing

Keywords

• Computer Science Applications
• History
• Education

Details

• CRID: 1050289321232051328
• NII Article ID: 120006870283
• ISSN: 17426588
• ISSN: 17426596
• DOI: 10.1088/1742-6596/1412/6/062005
• HANDLE: 2433/252532
• Web Site: https://iopscience.iop.org/article/10.1088/1742-6596/1412/6/062005/pdf
• Web Site: https://iopscience.iop.org/article/10.1088/1742-6596/1412/6/062005
• Text Lang: en
• Article Type: conference paper
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN