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Catching Shaped Microwave Photons with 99.4% Absorption Efficiency
J. Wenner, Yi Yin, Yu Chen +15
We demonstrate a high efficiency deterministic quantum receiver to convert flying qubits to logic qubits. We employ a superconducting resonator, which is driven with a shaped pulse…
Fabrication and Characterization of Aluminum Airbridges for Superconducting Microwave Circuits
Zijun Chen, Anthony Megrant, Julian Kelly +16
Superconducting microwave circuits based on coplanar waveguides (CPW) are susceptible to parasitic slotline modes which can lead to loss and decoherence. We motivate the use of sup…
Design and characterization of a lumped element single-ended superconducting microwave parametric amplifier with on-chip flux bias line
Josh Mutus, Ted White, Evan Jeffrey +18
We demonstrate a lumped-element Josephson parametric amplifier, using a single-ended design that includes an on-chip, high-bandwidth flux bias line. The amplifier can be pumped int…
Coherent Josephson qubit suitable for scalable quantum integrated circuits
R. Barends, J. Kelly, A. Megrant +13
We demonstrate a planar, tunable superconducting qubit with energy relaxation times up to 44 microseconds. This is achieved by using a geometry designed to both minimize radiative…