Contextual, Optimal and Universal Realization of the Quantum Cloning Machine and of the NOT gate
Quantum Physics
2009-11-10 v1
Abstract
A simultaneous realization of the Universal Optimal Quantum Cloning Machine (UOQCM) and of the Universal-NOT gate by a quantum injected optical parametric amplification (QIOPA), is reported. The two processes, forbidden in their exact form for fundamental quantum limitations, are found universal and optimal, and the measured fidelity F<1 is found close to the limit values evaluated by quantum theory. This work may enlighten the yet little explored interconnections of fundamental axiomatic properties within the deep structure of quantum mechanics.
Keywords
Cite
@article{arxiv.quant-ph/0312124,
title = {Contextual, Optimal and Universal Realization of the Quantum Cloning Machine and of the NOT gate},
author = {Francesco De Martini and Daniele Pelliccia and Fabio Sciarrino},
journal= {arXiv preprint arXiv:quant-ph/0312124},
year = {2009}
}
Comments
10 pages, 2 figures