Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00014 : Optimizing the Josephson Parametric Amplifier - A numerical study
Author:
Recent progress in quantum information processing using superconducting
circuits has stimulated interest in low noise amplifiers which operate at
the quantum limit. Josephson parametric amplifiers (paramp) based on low
quality factor (Q) non-linear resonators are a promising candidate for
quantum state readout. We present a numerical study to optimize the paramp
for dynamic range and bandwidth by investigating the lowest resonator Q
compatible with high gain and low noise performance in the 4-- 8 GHz range.
We also investigate designs involving multiple junctions and weak-link
junctions to further optimize the dynamic range. Such an amplifier can be
used for single shot readout of superconducting qubits and real time
detection of the quantum state---crucial developments for implementing
quantum feedback and error correction.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.14
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