6 papers
Minimizing the discrimination time for quantum states of an artificial atom
Ivan Takmakov, Patrick Winkel, Farshad Foroughi +9
Fast discrimination between quantum states of superconducting artificial atoms is an important ingredient for quantum information processing. In circuit quantum electrodynamics, in…
Fabrication and characterization of aluminum SQUID transmission lines
Luca Planat, Ekaterina Al-Tavil, Javier Puertas Martinez +10
We report on the fabrication and characterization of 50 Ohms, flux-tunable, low-loss, SQUID-based transmission lines. The fabrication process relies on the deposition of a thin die…
Fast high fidelity quantum non-demolition qubit readout via a non-perturbative cross-Kerr coupling
R. Dassonneville, T. Ramos, V. Milchakov +12
Qubit readout is an indispensable element of any quantum information processor. In this work, we experimentally demonstrate a non-perturbative cross-Kerr coupling between a transmo…
Understanding the saturation power of Josephson Parametric Amplifiers made from SQUIDs arrays
Luca Planat, Remy Dassonneville, Javier Puertas Martinez +7
We report on the implementation and detailed modelling of a Josephson Parametric Amplifier (JPA) made from an array of eighty Superconducting QUantum Interference Devices (SQUIDs),…
A micro-SQUID with dispersive readout for magnetic scanning microscopy
Farshad Foroughi, Jan-Michael Mol, Tristan Mueller +3
We have designed and characterized a micro-SQUID with dispersive readout for use in low temperature scanning probe microscopy systems. The design features a capacitively shunted RF…
A tunable Josephson platform to explore many-body quantum optics in circuit-QED
Javier Puertas Martinez, Sebastien Leger, Nicolas Gheeraert +10
Coupling an isolated emitter to a single mode of the electromagnetic field is now routinely achieved and well understood. Current efforts aim to explore the coherent dynamics of em…