DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2019 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 49: Poster Session: Superconductivity

TT 49.36: Poster

Wednesday, April 3, 2019, 15:00–18:30, Poster D

Experimental characterization of a wideband Josephson traveling-wave parametric amplifier — •Christoph Kissling, Marat Khabipov, Ralf Dolata, and Alexander B. Zorin — Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany

A Josephson traveling-wave parametric amplifier was developed and experimentally characterized. The amplifier consists of an array of N=1000-1500 RF-SQUIDs embedded in a coplanar transmission line. With a magnetic field bias, an optimal operation point ensuring a large quadratic and zero cubic nonlinearity in the current-phase relation of the SQUID can be set. Thus, the amplifier operates in a three-wave mixing regime, featuring large separation of pump and signal frequency, high bandwidth at a decent gain, and promisingly quantum-limited noise. The amplifier was realized in Niobium tri-layer technology with different circuit designs. The experimental results will be presented.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2019 > Regensburg