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quant-ph2026
Practical Limits to Single-Mode Vacuum Squeezing with a SNAIL Parametric Amplifier
Theodore Shaw, Debsuvra Mukhopadhyay, Zhuoqun Hao +4
We characterize single-mode vacuum squeezing generated by a SNAIL Parametric Amplifier (SPA) operated under conditions representative of practical sensing and qubit-readout experim…
quant-ph2026
Wireless Josephson parametric amplifier above 20 GHz
Z. Hao, J. Cochran, Y. -C. Chang +2
Operating superconducting qubits at elevated temperatures offers increased cooling power and thus system scalability, but requires suppression of thermal photons to preserve cohere…
quant-ph2024
Kerr nonlinearity and parametric amplification with an Al-InAs superconductor-semiconductor Josephson junction
Z. Hao, T. Shaw, M. Hatefipour +5
Nearly quantum limited Josephson parametric amplifiers (JPAs) are essential components in superconducting quantum circuits. However, higher order nonlinearities of the Josephson co…