Evidence of Quantum Chaos in Feshbach Resonances of Ultracold <sup>87</sup>Rb+<sup>23</sup>Na<sup>87</sup>Rb

ORAL

Abstract

We report the observation of magnetically tunable Feshbach resonances between ultracold 87Rb atoms and ground-state 23Na87Rb molecules. More than 50 resonances have been observed in each of two different collisional channels in the magnetic field range of about 500 Gauss. Analyzing the distributions of the resonances statistically and comparing them to models based on random matrix theory, we obtain the first evidence of chaotic scattering in the atom-molecule system.

*This work was supported by Hong Kong Research Grants Council (RGC) General Research Fund (Grants No. 14301119, and No. 14301818) and the Collaborative Research Fund (Grants No. C6005-17G, and No. C6009- 20GF).

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Presenters

  • Mucan Jin

    • The Chinese University of Hongkong
    • The Chinese University of Hong Kong

Authors

  • Mucan Jin

    • The Chinese University of Hongkong
    • The Chinese University of Hong Kong

  • Guanghua CHEN

    • The Chinese University of Hong Kong

  • Junyu Lin

    • Chinese University of Hong Kong
    • The Chinese University of Hong Kong

  • Zhaopeng Shi

    • The Chinese University of Hong Kong

  • Bo Yang

    • The Chinese University of Hong Kong

  • Dajun Wang

    • Chinese University of Hong Kong
    • The Chinese University of Hong Kong