Unconditional quantum cloning of coherent states with linear optics
Quantum Physics
2009-11-11 v2
Abstract
A scheme for optimal Gaussian cloning of optical coherent states is proposed and experimentally demonstrated. Its optical realization is based entirely on simple linear optical elements and homodyne detection. The optimality of the presented scheme is only limited by detection inefficiencies. Experimentally we achieved a cloning fidelity of about 65%, which almost touches the optimal value of 2/3.
Cite
@article{arxiv.quant-ph/0501005,
title = {Unconditional quantum cloning of coherent states with linear optics},
author = {Ulrik L. Andersen and Vincent Josse and Gerd Leuchs},
journal= {arXiv preprint arXiv:quant-ph/0501005},
year = {2009}
}
Comments
Phys. Rev. Lett. Volume 94, Number 24, p. 240503