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quant-ph2010★ 202 cited
Quantum state tomography of an itinerant squeezed microwave field
F. Mallet, M. A. Castellanos-Beltran, H. S. Ku +6
We perform state tomography of an itinerant squeezed state of the microwave field prepared by a Josephson parametric amplifier (JPA). We use a second JPA as a pre-amplifier to impr…
quant-ph2010★ 17 cited
Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing
H. S. Ku, F. Mallet, L. R. Vale +4
We report on the design, fabrication and testing of two superconducting passive microwave components, a quadrature hybrid and a 20 dB directional coupler. These components are desi…