no code implementations • 5 Jan 2021 • Alexander Bilmes, Alexander K. Neumann, Serhii Volosheniuk, Alexey V. Ustinov, Jürgen Lisenfeld
Shadow evaporation is commonly used to micro-fabricate the key element of superconducting qubits - the Josephson junction.
Quantum Physics Applied Physics
no code implementations • 21 Sep 2019 • Jürgen Lisenfeld, Alexander Bilmes, Anthony Megrant, Rami Barends, Julian Kelly, Paul Klimov, Georg Weiss, John M. Martinis, Alexey V. Ustinov
About 40% of all detected defects are contained in the tunnel barriers of the large-area parasitic Josephson junctions that occur collaterally in shadow evaporation, and only about 3% are identified as strongly coupled defects which presumably reside in the small-area qubit tunnel junctions.
Superconductivity Quantum Physics
