DEVICE AND METHOD FOR DETECTING SINGLE MICROWAVE PHOTONS

A superconducting detection device for detecting a single microwave photon, including: -a quantum system with two energy levels of which the ground state and an excited state are controllable and detectable, the quantum system being designed to allow modulable three-wave interaction; -a buffer reson...

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Bibliographic Details
Main Authors LESCANNE, Raphaël, FLURIN, Emmanuel, DELEGLISE, Samuel, LEGHTAS, Zaki
Format Patent
LanguageEnglish
Finnish
Published 28.03.2024
Subjects
CALCULATING
COLORIMETRY
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
TRANSMISSION
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Summary:A superconducting detection device for detecting a single microwave photon, including: -a quantum system with two energy levels of which the ground state and an excited state are controllable and detectable, the quantum system being designed to allow modulable three-wave interaction; -a buffer resonator arranged to receive an incident single microwave photon; -a highly dissipative auxiliary resonator arranged to discharge a photon; and-a reading device arranged to detect the state of the two-level quantum system; the buffer resonator and the auxiliary resonator are coupled to the quantum system; and the excited state of the quantum system and the photon of the auxiliary resonator are created in response to the reception of the incident photon in the buffer resonator and to the application of parametric pumping to the device. A method for detecting a single microwave photon implemented by a device according to the invention.
Bibliography:Application Number: FI19823913T