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Title: Characterization of a multimode coplanar waveguide parametric amplifier

We characterize a Josephson parametric amplifier based on a flux-tunable quarter-wavelength resonator. The fundamental resonance frequency is ∼1 GHz, but we use higher modes of the resonator for our measurements. An on-chip tuning line allows for magnetic flux pumping of the amplifier. We investigate and compare degenerate parametric amplification, involving a single mode, and nondegenerate parametric amplification, using a pair of modes. We show that we reach quantum-limited noise performance in both cases.
Authors:
; ; ; ;  [1] ; ;  [2] ;  [1] ;  [3]
  1. Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology, Göteborg SE-412 96 (Sweden)
  2. Institute for Quantum Computing and Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)
  3. (United States)
Publication Date:
OSTI Identifier:
22492827
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 15; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLIFICATION; COMPARATIVE EVALUATIONS; GHZ RANGE 01-100; MAGNETIC FLUX; NOISE; PARAMETRIC AMPLIFIERS; PERFORMANCE; RESONATORS; WAVEGUIDES; WAVELENGTHS