3 papers
quant-ph2025
A Linear Quantum Coupler for Clean Bosonic Control
Aniket Maiti, John W. O. Garmon, Yao Lu +3
Quantum computing with superconducting circuits relies on high-fidelity driven nonlinear processes. An ideal quantum nonlinearity would selectively activate desired coherent proces…
quant-ph2025
Optimizing the pump coupling for a three-wave mixing Josephson parametric amplifier
Wei Dai, Gangqiang Liu, Vidul Joshi +4
Josephson element-based parametric amplifiers (JPAs) typically require rf pump power that is several orders of magnitude stronger than the maximum signal power they can handle. The…
quant-ph2025
Lumped-element broadband SNAIL parametric amplifier with on-chip pump filter for multiplexed readout
V. R. Joshi, S. Hazra, A. Z. Ding +7
We present a SNAIL-based parametric amplifier that integrates a lumped-element impedance matching network for increased bandwidth and an on-chip pump-port filter for efficient pump…