Probabilistic Quantum Teleportation
量子物理
2009-11-07 v1
摘要
We consider a generalized quantum teleportation protocol for an unknown qubit using non-maximally entangled state as a shared resource. Without recourse to local filtering or entanglement concentration, using standard Bell-state measurement and classical communication one cannot teleport the state with unit fidelity and unit probability. We show that using non-maximally entangled measurements one can teleport an unknown state with unit fidelity albeit with reduced probability, hence probabilistic teleportation. We also give a generalized protocol for entanglement swapping using non-maximally entangled states.
引用
@article{arxiv.quant-ph/0210004,
title = {Probabilistic Quantum Teleportation},
author = {Pankaj Agrawal and Arun K. Pati},
journal= {arXiv preprint arXiv:quant-ph/0210004},
year = {2009}
}
备注
Latex file, 11 pages, No figures