45 citations · 147 across the 17 of their papers we have counts for
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Spectral Properties of Two Superconducting Artificial Atoms Coupled to a Resonator in the Ultrastrong Coupling Regime
Akiyoshi Tomonaga, Roberto Stassi, Hiroto Mukai +3
We experimentally investigate a superconducting circuit composed of two flux qubits ultrastrongly coupled to a common LC resonator. Owing to the large anharmonicity of the flux qub…
Active Initialization Experiment of Superconducting Qubit Using Quantum-circuit Refrigerator
Teruaki Yoshioka, Hiroto Mukai, Akiyoshi Tomonaga +5
The initialization of superconducting qubits is one of the essential techniques for the realization of quantum computation. In previous research, initialization above 99\% fidelity…
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
Daisuke Iyama, Takahiko Kamiya, Shiori Fujii +9
Quantum tunneling is the phenomenon that makes superconducting circuits "quantum". Recently, there has been a renewed interest in using quantum tunneling in phase space of a Kerr p…
Mitigation of noise in Josephson parametric oscillator by injection locking
Gopika Lakshmi Bhai, Hiroto Mukai, Jaw-Shen Tsai
Injection locking is a well-established technique widely used in optics as well as solid-state devices for efficient suppression of noise. We present the spectroscopic characteriza…