In physics, a quantum amplifier is an amplifier that uses quantum mechanical methods to amplify a signal; examples include the active elements of lasers and optical amplifiers. The main figures of merit of a quantum amplifier are its gain and added noise.
In physics, a quantum amplifier is an amplifier that uses quantum mechanical methods to amplify a signal; examples include the active elements of lasers and optical amplifiers. The main figures of merit of a quantum amplifier are its gain and added noise.
Source: Wikipedia "Quantum amplifier" · CC BY-SA 4.0
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