Directional superconducting circuitry device

Abstract

Disclosed is a superconducting circuitry device comprising a first filter configured to pass a signal having a first frequency and a parametric device coupled to the first filter. The parametric device is configured to generate an idler tone haVing athird frequency and the first filter is fiirthermore configured to suppress transmission of at least the idler tone. The disclosed superconducting circuitry device fiirthermore comprises a second filter coupled to the parametric device. The second filter is configured to pass the idler tone and to suppress transmission of at least signals haVing the first frequency.