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quant-ph2026
Interface Piezoelectric Loss in Superconducting Qubits
Haoxin Zhou, Kangdi Yu, Yashwanth Balaji +5
Dissipation remains a central obstacle to improving superconducting quantum circuits, yet the microscopic origins of loss in widely used materials platforms are not fully understoo…
quant-ph2024
Electron-beam annealing of Josephson junctions for frequency tuning of quantum processors
Yashwanth Balaji, Narendra Acharya, Robert Armstrong +7
Superconducting qubits are a promising route to achieving large-scale quantum computers. A key challenge in realising large-scale superconducting quantum processors involves mitiga…
quant-ph2024
Integration of through-sapphire substrate machining with superconducting quantum processors
Narendra Acharya, Robert Armstrong, Yashwanth Balaji +7
We demonstrate a sapphire machining process integrated with intermediate-scale quantum processors. The process allows through-substrate electrical connections, necessary for low-fr…