An experimental platform for hybridization of atomic and superconducting quantum systems

  1. Alessandro Landra,
  2. Christoph Hufnagel,
  3. Lim Chin Chean,
  4. Thomas Weigner,
  5. Yung Szen Yap,
  6. Long Hoang Nguyen,
  7. and Rainer Dumke
Hybrid quantum systems have the potential of mitigating current challenges in developing a scalable quantum computer. Of particular interest is the hybridization between atomic and
superconducting qubits. We demonstrate a novel experimental setup for transferring and trapping ultracold atoms inside a millikelvin cryogenic environment, where interactions between atomic and superconducting qubits can be established, paving the way for hybrid quantum systems. 87Rb atoms are prepared in a conventional magneto-optical trap and transported via a magnetic conveyor belt into a UHV compatible dilution refrigerator with optical access. We store 5×108 atoms with a lifetime of 794 seconds in the vicinity of the millikelvin stage.