High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
Quantum Physics
2009-11-11 v2
Abstract
We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.700.02 that surpasses the no-cloning limit of 2/3. Surpassing the limit is necessary to transfer the nonclassicality of an input quantum state. By using our high-fidelity teleporter, we demonstrate entanglement swapping, namely teleportation of quantum entanglement, as an example of transfer of nonclassicality.
Keywords
Cite
@article{arxiv.quant-ph/0501086,
title = {High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables},
author = {Nobuyuki Takei and Hidehiro Yonezawa and Takao Aoki and Akira Furusawa},
journal= {arXiv preprint arXiv:quant-ph/0501086},
year = {2009}
}
Comments
revised version, 4 pages, 4 figures