Quantum Cloning for Absolute Radiometry

Abstract

In the quantum regime information can be copied with only a finite fidelity. This fidelity gradually increases to 1 as the system becomes classical. In this article we show how this fact can be used to directly measure the amount of radiated power. We demonstrate how these principles could be used to build a practical primary standard.

References in corpus (1)

• Absolute calibration of Analog Detectors using Stimulated Parametric Down Conversion

Cited by in corpus (9)

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• Violation of Bell inequalities in larger Hilbert spaces: robustness and challenges
• Intrinsically stable light source at telecom wavelengths
• Measuring absolute spectral radiance using an Erbium Doped Fibre Amplifier
• Long-distance quantum key distribution based on the physical loss control