A hybrid ferromagnetic transmon qubit: circuit design, feasibility and detection protocols for magnetic fluctuations

  1. Halima Giovanna Ahmad,
  2. Valentina Brosco,
  3. Alessandro Miano,
  4. Luigi Di Palma,
  5. Marco Arzeo,
  6. Domenico Montemurro,
  7. Procolo Lucignano,
  8. Giovanni Piero Pepe,
  9. Francesco Tafuri,
  10. Rosario Fazio,
  11. and Davide Massarotti
We propose to exploit currently available tunnel ferromagnetic Josephson junctions to realize a hybrid superconducting qubit. We show that the characteristic hysteretic behavior of