English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Multipartite entanglement plays an important role in controlled quantumteleportation, quantum secret sharing, quantum metrology and some otherimportant quantum information branches. However, the maximally multipartiteentangled state will degrade into the mixed state because of the noise. Wepresent an efficient multipartite entanglement purification protocol (EPP)which can distill the high quality entangled states from low quality entangledstates for N-photon systems in a Greenberger-Horne-Zeilinger (GHZ) state inonly linear optics. After performing the protocol, the spatial-modeentanglement is used to purify the polarization entanglement and one pair ofhigh quality polarization entangled state will be obtained. This EPP hasseveral advantages. Firstly, with the same purification success probability,this EPP only requires one pair of multipartite GHZ state, while existing EPPsusually require two pairs of multipartite GHZ state. Secondly, if consider thepractical transmission and detector efficiency, this EPP may be extremelyuseful for the ratio of purification efficiency is increased rapidly with boththe number of photons and the transmission distance. Thirdly, this protocolrequires linear optics and does not add additional measurement operations, sothat it is feasible for experiment. All these advantages will make thisprotocol have potential application for future quantum information processing.

High efficient multipartite entanglement purification using hyperentanglement