4 papers · 1 filter
Tantalum as a base material for superconducting integrated circuits
Evgeniy V. Zikiy, Nikita S. Smirnov, Stanislav A. Kotenkov +9
The performance of superconducting integrated circuits for quantum applications is fundamentally limited by material-related losses. Tantalum, as an emerging material for next-gene…
High-fidelity two-qubit gates with transmon qubits using bipolar flux pulses and tunable couplers
Nikita S. Smirnov, Aleksei R. Matanin, Anton I. Ivanov +15
High-fidelity two-qubit gates are essential for scalable quantum computing. We present a scheme based on superconducting transmon qubits and a control pulse delivery protocol that…
An engineering guide to superconducting quantum circuit shielding
Elizaveta I. Malevannaya, Viktor I. Polozov, Anton I. Ivanov +10
In this review, we provide a practical guide on protection of superconducting quantum circuits from broadband electromagnetic and infrared-radiation noise by using cryogenic shield…
Wafer-scale uniformity improvement of Dolan-bridge Josephson junction by shadow evaporation bias correction
Daria A. Moskaleva, Nikita D. Korshakov, Dmitry O. Moskalev +7
One of the practical limitations of solid-state superconducting quantum processors technology is frequency crowding due to low qubits fabrication reproducibility. Josephson junctio…