Inelastic Microwave Photon Scattering off a Quantum Impurity in a Josephson-Junction Array
Inelastic Microwave Photon Scattering off a Quantum Impurity in a Josephson-Junction Array
Quantum fluctuations in an anharmonic superconducting circuit enable frequency conversion of individual incoming photons. This effect, linear in the photon beam intensity, leads to ramifications for the standard input-output circuit theory. We consider an extreme case of anharmonicity in which photons scatter off a small set of weak links within …