ResonatorA resonator is a device or system that exhibits resonance or resonant behavior. That is, it naturally oscillates with greater amplitude at some frequencies, called resonant frequencies, than at other frequencies. The oscillations in a resonator can be either electromagnetic or mechanical (including acoustic). Resonators are used to either generate waves of specific frequencies or to select specific frequencies from a signal. Musical instruments use acoustic resonators that produce sound waves of specific tones.
Phase qubitIn quantum computing, and more specifically in superconducting quantum computing, the phase qubit is a superconducting device based on the superconductor–insulator–superconductor (SIS) Josephson junction, designed to operate as a quantum bit, or qubit. The phase qubit is closely related, yet distinct from, the flux qubit and the charge qubit, which are also quantum bits implemented by superconducting devices.
TéléphonieTéléphonie fut d’abord le nom donné par François Sudre, dans les années 1830, à son système de transmission de sons à distance, basé sur les notes de musique, pour l’échange de messages. La téléphonie est devenue ensuite un système de communication assurant essentiellement la transmission et la reproduction de la voix (et plus rarement d'autres signaux sonores), système qui regroupe un ensemble de fonctionnalités téléphoniques.
