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Measuring nonclassicality with silicon photomultipliers
Optics Letters
|March 16, 2019
Summary
Nonclassicality of twin-beam states can be detected using commercial photon-number-resolving detectors. Proper signal analysis overcomes detector imperfections, enabling quantum property measurements.
Area of Science:
- Quantum optics
- Photonics
- Quantum information science
Background:
- Detector imperfections limit quantum measurements, particularly photon-number resolution.
- Mesoscopic regime measurements require precise photon counting.
- Stochastic deviations in detectors hinder the study of light's quantum properties.
Purpose of the Study:
- To demonstrate the detection and exploitation of nonclassicality in twin-beam states.
- To show that commercial photon-number-resolving detectors can be used for this purpose.
- To overcome limitations posed by detector stochastic deviations.
Main Methods:
- Utilizing commercial silicon-based photon-number-resolving detectors.
- Implementing a proper analysis of the output signal from the detectors.
- Employing twin-beam states of light.
Main Results:
- Successfully detected nonclassicality in twin-beam states.
- Demonstrated the exploitability of this nonclassicality.
- Showcased the viability of using cost-effective detectors.
Conclusions:
- Commercial photon-number-resolving detectors are suitable for detecting quantum properties of light.
- Proper signal analysis can compensate for detector imperfections.
- This approach enables quantum measurements in the mesoscopic regime with accessible technology.
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