202 citations · 910 across the 15 of their papers we have counts for
4 papers · 1 filter
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…
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…
Circuit QED with a Nonlinear Resonator : ac-Stark Shift and Dephasing
F. R. Ong, M. Boissonneault, F. Mallet +7
We have performed spectroscopic measurements of a superconducting qubit dispersively coupled to a nonlinear resonator driven by a pump microwave field. Measurements of the qubit fr…
Strongly quadrature-dependent noise in superconducting micro-resonators measured at the vacuum-noise limit
J. Gao, L. R. Vale, J. A. B. Mates +8
We measure frequency- and dissipation-quadrature noise in superconducting lithographed microwave resonators with sensitivity near the vacuum noise level using a Josephson parametri…