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Fault-Tolerant Greenberger-Horne-Zeilinger Paradox Based on Non-Abelian Anyons
Journal article   Peer reviewed

Fault-Tolerant Greenberger-Horne-Zeilinger Paradox Based on Non-Abelian Anyons

Dong-Ling Deng, Chunfeng Wu, Jing-Ling Chen and C. H. Oh
Physical review letters, Vol.105(6), p.060402
06/08/2010
PMID: 20867962

Abstract

Physical Sciences Physics Physics, Multidisciplinary Science & Technology
We propose a scheme to test the Greenberger-Horne-Zeilinger paradox based on braidings of non-Abelian anyons, which are exotic quasiparticle excitations of topological states of matter. Because topological ordered states are robust against local perturbations, this scheme is in some sense "fault-tolerant'' and might close the detection inefficiency loophole problem in previous experimental tests of the Greenberger-Horne-Zeilinger paradox. In turn, the construction of the Greenberger-Horne-Zeilinger paradox reveals the nonlocal property of non-Abelian anyons. Our results indicate that the non-Abelian fractional statistics is a pure quantum effect and cannot be described by local realistic theories. Finally, we present a possible experimental implementation of the scheme based on the anyonic interferometry technologies.

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