Flux-driven Josephson parametric amplifier

Simple item page
dc.creatorYamamoto, T.
dc.creatorInomata, K.
dc.creatorWatanabe, M.
dc.creatorMatsuba, K.
dc.creatorMiyazaki, T.
dc.creatorOliver, W. D.
dc.creatorNakamura, Y.
dc.creatorTsai, J. S.
dc.date2008-08-10
dc.date.accessioned2026-07-07T09:55:54Z
dc.date.available2026-07-07T09:55:54Z
dc.descriptionWe have developed a Josephson parametric amplifier, comprising a superconducting coplanar waveguide resonator terminated by a dc SQUID (superconducting quantum interference device). An external field (the pump, $\sim 20$ GHz) modulates the flux threading the dc SQUID, and, thereby, the resonant frequency of the cavity field (the signal, $\sim 10$ GHz), which leads to parametric signal amplification. We operated the amplifier at different band centers, and observed amplification (17 dB at maximum) and deamplification depending on the relative phase between the pump and the signal. The noise temperature is estimated to be less than 0.87 K.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0808.1386
dc.identifierhttp://arxiv.org/abs/0808.1386
dc.identifierAPL 93, 042510 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166794
dc.subjectSuperconductivity
dc.titleFlux-driven Josephson parametric amplifier
dc.typetext

Files

Collections

arXiv