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The generalized partial transposition criterion for separability of multipartite quantum states

Kai Chen·Ling-An Wu
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Abstract

We present a generalized partial transposition separability criterion for the density matrix of a multipartite quantum system. This criterion comprises as special cases the famous Peres-Horodecki criterion and the recent realignment criterion in [O. Rudolph, quant-ph/0202121] and [K. Chen, L.A. Wu, quant-ph/0205017]. It involves only straightforward matrix manipulations and is easy to apply. A quantitative measure of entanglement based on this criterion is also obtained.

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Kai Chen, Ling-An Wu. 2002-12-14. The generalized partial transposition criterion for separability of multipartite quantum states. https://doi.org/10.1016/s0375-9601(02)01538-4

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