131 citations · 550 across the 11 of their papers we have counts for
4 papers · 1 filter
Flux-driven Josephson parametric amplifiers: Hysteretic flux response and nondegenerate gain measurements
Stefan Pogorzalek, Kirill G. Fedorov, Ling Zhong +11
Josephson parametric amplifiers (JPA) have become key devices in quantum science and technology with superconducting circuits. In particular, they can be utilized as quantum-limite…
Photon Statistics of Propagating Thermal Microwaves
J. Goetz, S. Pogorzalek, F. Deppe +7
In experiments with superconducting quantum circuits, characterizing the photon statistics of propagating microwave fields is a fundamental task. We quantify the ph…
Second-order decoherence mechanisms of a transmon qubit probed with thermal microwave states
J. Goetz, F. Deppe, P. Eder +9
Thermal microwave states are omnipresent noise sources in superconducting quantum circuits covering all relevant frequency regimes. We use them as a probe to identify three second-…
Displacement of propagating squeezed microwave states
Kirill G. Fedorov, L. Zhong, S. Pogorzalek +16
Displacement of propagating quantum states of light is a fundamental operation for quantum communication. It enables fundamental studies on macroscopic quantum coherence and plays…