From cold atoms to ultracold molecules: spin‐wave rephasing and ultracold exchange reaction (Dr. Jun Rui)

  • Datum: 03.03.2017
  • Uhrzeit: 11:05 - 12:00
  • Vortragende(r): Dr. Jun Rui
  • University of Science & Technology of China
  • Raum: Herbert Walther Lecture Hall
  • Gastgeber: MPQ & Max Planck Harvard Center
In this talk, I will introduce the setup that we have built in the past three years to create ultracold 23Na40K molecules from an ultracold atomic mixture gas.

We have accidentally observed an AB+C —> AC+B type exchange reaction in experiment, where AB and AC are both weakly bound ultracold NaK molecules, B and C are K atoms in different Zeeman sub‐levels. In this work, the full reaction products have been successfully observed for the first time in an ultracold chemistry experiment. The observed product provide an unique way to characterize the dynamics of the reaction process. By changing the magnetic field, the reaction can be turned on or off, and the microscopic state‐to‐state reaction rate coefficient can be controlled.

J. Rui et al., Controlled state‐to‐state atom‐exchange reaction in an ultracold atom‐dimer mixture. arXiv:1611.0906

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