Positioning and clock synchronization through entanglement
量子物理
2009-11-07 v3
摘要
A method is proposed to employ entangled and squeezed light for determining the position of a party and for synchronizing distant clocks. An accuracy gain over analogous protocols that employ classical resources is demonstrated and a quantum-cryptographic positioning application is given, which allows only trusted parties to learn the position of whatever must be localized. The presence of a lossy channel and imperfect photodetection is considered. The advantages in using partially entangled states is discussed.
引用
@article{arxiv.quant-ph/0107140,
title = {Positioning and clock synchronization through entanglement},
author = {Vittorio Giovannetti and Seth Lloyd and Lorenzo Maccone},
journal= {arXiv preprint arXiv:quant-ph/0107140},
year = {2009}
}
备注
Revised version. 9 pages, 6 figures