Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1864780 | Physics Letters A | 2008 | 4 Pages |
Abstract
Greenberger-Horn-Zeilinger (GHZ) argument of nonlocality without inequalities is extended to the case of four-qubit mixed states. Three different kinds of entangled states are analyzed in presence of white and colored noise. The nonlocality properties of these states will be weakened and destroyed by the noise. We found that all these states have the same ability to resist the influence of white noise, while the cluster state is the most robust against colored noise.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Ming-jun Shi, Chang-liang Ren, Bo Chong, Jiang-feng Du,