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Entanglement Theory Quantum Correlations
Open Quantum Systems Decoherence
Quantum Foundations
Bell-type inequality and quantum nonlocality in four-qubit systems
arXiv
Authors: Dong Ding, Fengli Yan, Ting Gao
Year
2013
Paper ID
31277
Status
Preprint
Abstract Read
~2 min
Abstract Words
91
Citations
N/A
Abstract
We present a Bell-type inequality for four-qubit systems. Using the inequality we investigate quantum nonlocality of a generic family of states left|Gabcdright > [Phys. Rev. A 65, 052112 (2002)] and several canonical four-qubit entangled states. It has been demonstrated that the inequality is maximally violated by so called "four-qubit maximal entangled state left|Gmright >" and it is also violated by the four-qubit W state and a special family of states left|Gab00right >. Moreover, a useful entanglement-nonlocality relationship for the family of states left|Gab00right > is obtained.
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- This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
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- We present a Bell-type inequality for four-qubit systems.
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