Quantum cloning without signaling
量子物理
2009-10-31 v1
摘要
Perfect Quantum Cloning Machines (QCM) would allow to use quantum nonlocality for arbitrary fast signaling. However perfect QCM cannot exist. We derive a bound on the fidelity of QCM compatible with the no-signaling constraint. This bound equals the fidelity of the Bu\v{z}ek-Hillery QCM.
引用
@article{arxiv.quant-ph/9801005,
title = {Quantum cloning without signaling},
author = {Nicolas Gisin},
journal= {arXiv preprint arXiv:quant-ph/9801005},
year = {2009}
}