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arXiv · 1204.5283

Indecomposable optimal entanglement witnesses in C4 {\otimes} C4

Dariusz Chruściński·Filip A. Wudarski
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Abstract

We provide two 1-parameter families of indecomposable entanglement witnesses in C4 {\otimes} C4. Following recent paper by Ha and Kye [Phys. Rev. A 84, 024302 (2011)] we show that these EWs are optimal and hence provide the strongest tool in entanglement theory to discriminate between separable and entangled states. As a byproduct we show that these EWs detect quantum entanglement within a family of generalized Horodecki states.

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Dariusz Chruściński, Filip A. Wudarski. 2012-04-24. Indecomposable optimal entanglement witnesses in C4 {\otimes} C4. https://arxiv.org/abs/1204.5283

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