On Parametric Amplification in Josephson Transmission Line

Spontaneous synchronization in a Josephson transmission line.

At high frequencies, the dynamics of a Josephson array shows fundamental differences from its low-frequency behavior. We consider a simple array where the high-frequency effects are dominant, a current biased series array without any external load. Despite the absence of a load, the oscillators are dynamically coupled at high frequencies, and synchronized states can be attracting. We investigat...

Introduction to parametric amplification of quantum signals with Josephson circuits

Article history: Available online 10 August 2016

Asymmetric parametric amplification in nonlinear left-handed transmission lines

We study parametric amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative-index metamaterials. We experimentally demonstrate the amplification of a weak signal in the three following regimes: with the signal in the left-handed band, with the signal in the stop band, and with the signal at a defect frequency. In particular, we demonstrate ...

Parametric Amplification of Atoms

Four photon parametric amplification