Quantum Cloning for Absolute Radiometry
Quantum Physics
2015-05-19 v1
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.
Cite
@article{arxiv.1005.3485,
title = {Quantum Cloning for Absolute Radiometry},
author = {Bruno Sanguinetti and Enrico Pomarico and Pavel Sekatski and Hugo Zbinden and Nicolas Gisin},
journal= {arXiv preprint arXiv:1005.3485},
year = {2015}
}