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Epitaxial NbN-junction-based self-shunted superconducting flux qubit with high anharmonicity
Tokunoshin Uchida, Shingo Nozaki, Daiki Kurihara +5
We report a demonstration of a self-shunted superconducting flux qubit (SSFQ) as an ultracompact, strongly anharmonic, and long-lifetime qubit by using the full epitaxially grown N…
Sidewall spacer passivated epitaxial NbN/AlN/NbN Josephson junctions for superconducting qubit applications
Koki Honda, Daiki Kurihara, Hiroki Kutsuma +2
Epitaxial NbN/AlN/NbN Josephson junctions are promising alternatives to conventional Al/AlO/Al junctions for superconducting qubits due to their crystalline tunnel barriers and…
Spatially Resolved Optical Responses of a High-Kinetic-Inductance Microwave Resonator
R. Hirotsuru, H. Kurokawa, K. Takaki +2
Understanding the optical response of a high-kinetic-inductance microwave resonator is crucial for applications ranging from single-photon detection to quantum transduction between…