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arXiv · 1511.08954

Entanglement measure and quantum violation of Bell-type inequality for a family of four-qubit entangled states

Dong Ding·Yingqiu He·Fengli Yan·Ting Gao
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Abstract

By calculating entanglement measures and quantum violation of Bell-type inequality, we reveal the relationship between entanglement measure and the amount of quantum violation for a family of four-qubit entangled states. It has been demonstrated that the Bell-type inequality is completely violated by these four-qubit entangled states. The plot of entanglement measure as a function of the expectation value of Bell operator shows that entanglement measure first decreases and then increases smoothly with increasing quantum violation.

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Dong Ding, Yingqiu He, Fengli Yan, Ting Gao. 2015-11-29. Entanglement measure and quantum violation of Bell-type inequality for a family of four-qubit entangled states. https://doi.org/10.1007/s10773-016-3048-1

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