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quant-ph2018
Digital coherent control of a superconducting qubit
Edward Leonard, Matthew A. Beck, JJ Nelson +15
High-fidelity gate operations are essential to the realization of a fault-tolerant quantum computer. In addition, the physical resources required to implement gates must scale effi…
quant-ph2018
Measurement of a Superconducting Qubit with a Microwave Photon Counter
A. Opremcak, I. V. Pechenezhskiy, C. Howington +12
Fast, high-fidelity measurement is a key ingredient for quantum error correction. Conventional approaches to the measurement of superconducting qubits, involving linear amplificati…
quant-ph2017
Reverse isolation and backaction of the SLUG microwave amplifier
T. Thorbeck, S. Zhu, E. Leonard +4
An ideal preamplifier for qubit measurement must not only provide high gain and near quantum-limited noise performance, but also isolate the delicate quantum circuit from noisy dow…