NMR Experimental Demonstration of Probabilistic Quantum Cloning
Abstract
The method of quantum cloning is divided into two main categories: approximate and probabilistic quantum cloning. The former method is used to approximate an unknown quantum state deterministically, and the latter can be used to faithfully copy the state probabilistically. So far, many approximate cloning machines have been experimentally demonstrated, but probabilistic cloning remains an experimental challenge, as it requires more complicated networks and a higher level of precision control. In this work, we designed an efficient quantum network with a limited amount of resources, and performed the first experimental demonstration of probabilistic quantum cloning in an NMR quantum computer. In our experiment, the optimal cloning efficiency proposed by Duan and Guo [Phys. Rev. Lett. \textbf{80}, 4999 (1998)] is achieved.
Cite
@article{arxiv.1104.3643,
title = {NMR Experimental Demonstration of Probabilistic Quantum Cloning},
author = {Hongwei Chen and Dawei Lu and Bo Chong and Gan Qin and Xianyi Zhou and Xinhua Peng and Jiangfeng Du},
journal= {arXiv preprint arXiv:1104.3643},
year = {2015}
}
Comments
4 pages, 5 figures; to be published in Physical Review Letters