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quant-ph2026
Josephson energy of superconducting junctions: amorphous versus crystalline tunnel barriers
Wanting Zhang, Aldilene Saraiva-Souza, Félix Beaudoin +3
The Josephson energy is a key parameter governing the properties of transmon superconducting qubits. In Al/AlO/Al junctions, is set by electron tunneling through an…
quant-ph2026
Analysis of Hydrogen Contamination in Al/AlOx/Al Josephson Junctions
Yu Zhu, Aldilene Saraiva-Souza, Félix Beaudoin +1
Hydrogen contamination in Josephson junctions is a potential source of device-to-device variability and two-level-system loss in superconducting qubits. In this work, we investigat…