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arXiv · 1501.04162

Criteria for non-$k$-separability of $n$-partite quantum states

N. Ananth·V. K. Chandrasekar·M. Senthilvelan
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Abstract

We develop separability criteria to identify non-$k$-separability $(k = 2,3,\ldots,n)$ and genuine multipartite entanglement in different classes of mixed $n$-partite quantum states using elements of density matrices. With the help of these criteria, we detect non-$k$-separability in $n$-qudit GHZ and W states respectively added with white noise. We also discuss the experimental implementation of our criteria by means of local observables.

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N. Ananth, V. K. Chandrasekar, M. Senthilvelan. 2015-01-17. Criteria for non-$k$-separability of $n$-partite quantum states. https://doi.org/10.1140/epjd%2Fe2015-50538-5

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