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arXiv · 1005.3485

Quantum Cloning for Absolute Radiometry

Bruno Sanguinetti·Enrico Pomarico·Pavel Sekatski·Hugo Zbinden·Nicolas Gisin
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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.

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Bruno Sanguinetti, Enrico Pomarico, Pavel Sekatski, Hugo Zbinden, Nicolas Gisin. 2010-05-19. Quantum Cloning for Absolute Radiometry. https://doi.org/10.1103/physrevlett.105.080503

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