Entanglement purification for high-dimensional multipartite systems
- Authors
- Cheong, Yong Wook; Lee, Seung Woo; Lee, Jinhyoung; Lee, Hai Woong
- Issue Date
- Oct-2007
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW A, v.76, no.4, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW A
- Volume
- 76
- Number
- 4
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179486
- DOI
- 10.1103/PhysRevA.76.042314
- ISSN
- 1050-2947
- 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 passed through a noisy environment. For the detection of noise we investigate the correlation properties of GHZ states and analyze their possible errors due to a noisy environment. We show that the protocol presented is more efficient than a simple generalization of the purification protocol for a bipartite state in high dimensions.
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