47 citations · 134 across the 15 of their papers we have counts for
3 papers · 2 filters
Controls of a superconducting quantum parametron under a strong pump field
Shumpei Masuda, Toyofumi Ishikawa, Yuichiro Matsuzaki +1
Pumped at approximately twice the natural frequency, a Josephson parametric oscillator called parametron or Kerr parametric oscillator shows self-oscillation. Quantum annealing and…
Effects of higher levels of qubits on control of qubit protected by a Josephson quantum filter
Shumpei Masuda, Kazuki Koshino
A Josephson quantum filter (JQF) protects a data qubit (DQ) from the radiative decay into transmission lines in superconducting quantum computing architectures. A transmon, which i…
Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
Atsushi Noguchi, Alto Osada, Shumpei Masuda +7
We demonstrate fast two-qubit gates using a parity-violated superconducting qubit consisting of a capacitively-shunted asymmetric Josephson-junction loop under a finite magnetic fl…