Faithful sharing of multipartite entanglement over noisy quantum channels

Details Faithful sharing of multipartite entanglement over noisy quantum channels Faithful sharing of multipartite entanglement over noisy quantum channels

2003-12-31

arxiv.org/abs/quant-ph/0312223v1

Physics

Quantum Physics

4 pages

Scientific paper

We present a protocol in which two or more parties can share multipartite entanglement over noisy quantum channels. The protocol is based on the entanglement purification presented by Shor and Preskill [Phys. Rev. Lett. 85, 441 (2000)] and the quantum teleportation via an isotropic state. We show that a nearly perfect purification implies a nearly perfect sharing of multipartite entanglement between two parties so that the protocol can assure a faithful sharing of multipartite entanglement with Shor and Preskill's proof on the entanglement purification.

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