Olivier Buisson

TL;DR: Puertas-Martinez et al. as mentioned in this paper designed a superconducting circuit that provides an idealised synthetic environment for qubits with an interaction strength that is tunable with an external magnetic field, and experimentally demonstrate that their device combines this tunability with ultrastrong coupling and a qubit nonlinearity comparable to other relevant energy scales in the system.

TL;DR: In this article, a new solution to the phase-matching problem common to so-called traveling-wave parametric amplifiers is achieved with a simple design that's easy to fabricate.

TL;DR: In this paper, a detailed experimental and theoretical analysis of the dispersion and nonlinear Kerr frequency shifts of plasma modes in a one-dimensional Josephson junction chain containing 500 superconducting quantum interfence devices in the regime of weak nonlinearity is presented.

TL;DR: In this paper, a Josephson-junction array was used to increase the saturation power of a JPA, rather than using a single-JPA amplifier, and the array was modeled as a nonlinear $L\phantom{\rule{0}{0ex}}C$ resonator.

TL;DR: In this article, a new qubit readout scheme was proposed to preserve quantum state probabilities while maximizing fidelity with a fast readout time, thus providing a robust measurement method for a new generation of superconducting quantum processors.