Accession Number:

ADA624339

Title:

Resonant Phase Matching of Josephson Junction Traveling Wave Parametric Amplifiers

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA UNIV BERKELEY

Report Date:

2014-10-06

Pagination or Media Count:

6.0

Abstract:

We propose a technique to overcome phase mismatch in Josephson-junction traveling wave parametric amplifiers in order to achieve high gain over a broad bandwidth. Using resonant phase matching, we design a compact superconducting device consisting of a transmission line with subwavelength resonant inclusions that simultaneously achieves a gain of 20 dB, an instantaneous bandwidth of 3 GHz, and a saturation power of -98 dBm. Such an amplifier is well suited to cryogenic broadband microwave measurements such as the multiplexed readout of quantum coherent circuits based on superconducting semiconducting, or nanomechanical elements, as well as traditional astronomical detectors.

Subject Categories:

  • Electrical and Electronic Equipment
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE