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Entanglement purification for high dimensional multipartite systems

Authors
  • Cheong, Yong Wook
  • Lee, Seung-Woo
  • Lee, Jinhyoung
  • Lee, Hai-Woong
Type
Preprint
Publication Date
Aug 10, 2007
Submission Date
Dec 21, 2005
Identifiers
arXiv ID: quant-ph/0512173
Source
arXiv
License
Unknown
External links

Abstract

We propose an entanglement purification protocol for high-dimensional multipartite systems. In the protocol we can select a subensemble in a pure generalized Greenberger-Horne-Zeilinger (GHZ) state. This post-selection can be made by detecting the noise which contaminated the initial pure ensemble when the systems past through a noisy environment. For the detection of noise we investigate correlation properties of GHZ states and analyze their possible errors due to a noisy environment. We show that the presented protocol is more efficient than a simple generalization of the purification protocol for a bipartite state in high dimensions.

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