2 papers
quant-ph2026
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…
quant-ph2026
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…