Observation of a Bose-Einstein condensate of dipolar molecules

ORAL

Abstract

We report on the realization of a BEC of dipolar molecules [1]. By strongly suppressing two- and three-body losses via double microwave shielding, we evaporatively cool gases of sodium-cesium molecules to quantum degeneracy. The BEC reveals itself via a bimodal distribution when the phase-space density exceeds one. BECs with a condensate fraction of 60(10) % and a temperature of 6(2) nK are created and found to be stable with a lifetime close to 2 seconds.

[1] “Observation of Bose-Einstein condensation in a gas of dipolar molecules,” Bigagli, N., Yuan, W., Zhang, S., Bulatovic, B., Karman, T., Stevenson, I., Will, S., arXiv:2312.10965 (2023).

*We acknowledge funding support from NSF, ONR, and the Moore Foundation.

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Publication: "Observation of Bose-Einstein condensation in a gas of dipolar molecules," Bigagli, N., Yuan, W., Zhang, S., Bulatovic, B., Karman, T., Stevenson, I., Will, S., arXiv:2312.10965 (2023).

Presenters

  • Ian C Stevenson

    • Columbia Univ

Authors

  • Ian C Stevenson

    • Columbia Univ

  • Niccolò Bigagli

    • Columbia University

  • Weijun Yuan

    • Columbia University

  • Siwei Zhang

    • Columbia University

  • Boris Bulatovic

    • Columbia University

  • Tijs Karman

    • Radboud University Nijmegen
    • Harvard - Smithsonian Center for Astrophysics

  • Sebastian Will

    • Columbia University