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arXiv · 1207.1596

Detection of $k$-nonseparable $n$-partite quantum states

Ting Gao·Yan Hong
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Abstract

The detection of multipartite entanglement in arbitrary dimensional systems is investigated. We derive useful $k$-separability criteria of mixed $n$-partite ($n\geq 3$) quantum states to detect $k$-nonseparable $n$-partite quantum states. Our criteria can be expressed by the elements of the density matrix, which allows a simple and practical evaluation and computation. They are experimentally accessible without quantum state tomography.

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Ting Gao, Yan Hong. 2013-01-16. Detection of $k$-nonseparable $n$-partite quantum states. https://arxiv.org/abs/1207.1596

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