Probing Photoinduced Two-Body Loss of Ultracold Nonreactive Bosonic Na23Rb87 and Na23K39 Molecules

Philipp Gersema, Kai K. Voges, Mara Meyer zum Alten Borgloh, Leon Koch, Torsten Hartmann, Alessandro Zenesini, Silke Ospelkaus, Junyu Lin, Junyu He, and Dajun Wang
Phys. Rev. Lett. 127, 163401 – Published 11 October 2021
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Abstract

We probe photoinduced loss for chemically stable bosonic Na23Rb87 and Na23K39 molecules in chopped optical dipole traps, where the molecules spend a significant time in the dark. We expect the effective two-body decay to be significantly suppressed due to the small expected complex lifetimes of about 13 and 6μs for Na23Rb87 and Na23K39, respectively. However, instead we do not observe any suppression of the two-body loss in parameter ranges where large loss suppressions are expected. We believe these unexpected results are most probably due to drastic underestimation of the complex lifetime by at least 1–2 orders of magnitude.

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  • Received 2 March 2021
  • Accepted 16 September 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.163401

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Philipp Gersema1, Kai K. Voges1, Mara Meyer zum Alten Borgloh1, Leon Koch1, Torsten Hartmann1, Alessandro Zenesini1,2, and Silke Ospelkaus1,*

  • 1Institut für Quantenoptik, Leibniz Universität Hannover, 30167 Hannover, Germany
  • 2INO-CNR BEC Center, Dipartimento di Fisica, Università di Trento and TIFPA-INFN, 38123 Povo, Italy

Junyu Lin, Junyu He, and Dajun Wang

  • Department of Physics, The Chinese University of Hong Kong, Hong Kong, China

  • *silke.ospelkaus@iqo.uni-hannover.de
  • djwang@cuhk.edu.hk

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Issue

Vol. 127, Iss. 16 — 15 October 2021

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