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quant-ph2026
Long-lived memory effects in the defect bath of superconducting qubits
Abhishek Agarwal, Masum Uddin, Shroya Vaidya +5
We reveal long-lived memory effects in the defect bath of a superconducting transmon qubit through electric-field tuning of two-level system (TLS) defects coupled to the qubit. Usi…
quant-ph2024
In-operando microwave scattering-parameter calibrated measurement of a Josephson travelling wave parametric amplifier
S. H. Shin, M. Stanley, W. N. Wong +5
Superconducting travelling wave parametric amplifiers (TWPAs) are broadband near-quantum limited microwave amplifiers commonly used for qubit readout and a wide range of other appl…