Publications by Guillaume Beaulieu

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Quantum metrology, a cornerstone of quantum technologies, exploits entanglement and superposition to achieve higher precision than classical protocols in parameter-estimation tasks. When combined with critical phenomena such as phase transitions, the diver ...

Parametric amplifiers play a crucial role in modern quantum technology by enabling the enhancement of weak signals with minimal added noise. Traditionally, Josephson junctions have been the primary choice for constructing parametric amplifiers. Nevertheles ...

Superconducting microwave metamaterials offer enormous potential for quantum optics and information science, enabling the development of advanced quantum technologies for sensing and amplification. In the context of circuit quantum electrodynamics, such me ...

In open quantum systems, dissipative phase transitions (DPTs) emerge from the interplay between unitary evolution, drive, and dissipation. While second-order DPTs have been predominantly investigated theoretically, first-order DPTs have been observed in si ...

Guillaume Beaulieu

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Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator

Three-wave-mixing quantum-limited kinetic inductance parametric amplifier operating at 6 T near 1 K

High kinetic inductance cavity arrays for compact band engineering and topology-based disorder meters

Observation of first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator