Highly coherent superconducting qubits from a subtractive junction fabrication process

  1. Alexander Stehli,
  2. Jan David Brehm,
  3. Tim Wolz,
  4. Paul Baity,
  5. Sergey Danilin,
  6. Valentino Seferai,
  7. Hannes Rotzinger,
  8. Alexey V. Ustinov,
  9. and Martin Weides
Josephson tunnel junctions are the centerpiece of almost any superconducting electronic circuit, including qubits. Typically, the junctions for qubits are fabricated using shadow evaporation