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Reversing quantum trajectories with analog feedback
G. de Lange, D. Ristè, M. J. Tiggelman +6
We demonstrate the active suppression of transmon qubit dephasing induced by dispersive measurement, using parametric amplification and analog feedback. By real-time processing of…
Digital Quantum Simulation of Spin Systems in Superconducting Circuits
U. Las Heras, A. Mezzacapo, L. Lamata +3
We propose the implementation of a digital quantum simulator for prototypical spin models in a circuit quantum electrodynamics architecture. We consider the feasibility of the quan…
Microwave-controlled generation of shaped single photons in circuit quantum electrodynamics
M. Pechal, L. Huthmacher, C. Eichler +5
Large-scale quantum information processors or quantum communication networks will require reliable exchange of information between spatially separated nodes. The links connecting t…
Controlling the dynamic range of a Josephson parametric amplifier
C. Eichler, A. Wallraff
One of the central challenges in the development of parametric amplifiers is the control of the dynamic range relative to its gain and bandwidth, which typically limits quantum lim…
Input-output theory for waveguide QED with an ensemble of inhomogeneous atoms
Kevin Lalumière, Barry C. Sanders, Arjan F. van Loo +3
We study the collective effects that emerge in waveguide quantum electrodynamics where several (artificial) atoms are coupled to a one-dimensional superconducting transmission line…
Signatures of Hong-Ou-Mandel Interference at Microwave Frequencies
M. J. Woolley, C. Lang, C. Eichler +2
Two-photon quantum interference at a beam splitter, commonly known as Hong-Ou-Mandel interference, was recently demonstrated with \emph{microwave-frequency} photons by Lang \emph{e…