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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 may contribute to device-to-device variability in superconducting qubits, yet its incorporation, location, and bonding in tunnel barri…
quant-ph2025
Constraints on Atomistic Disorder for Scalable Electron Spin Shuttling
Raphaël J. Prentki, Pericles Philippopoulos, Mohammad Reza Mostaan +1
Electron spin shuttling, the gate-controlled, coherent transport of electrons between qubit registers, increases qubit connectivity and enables efficient quantum-error-correction s…