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Separability and entanglement in 2x3xN composite quantum systems

arXiv:quant-ph/0308159 · doi:10.1103/PhysRevA.68.022315

Abstract

The separability and entanglement of quantum mixed states in $\Cb^2 \otimes \Cb^3 \otimes \Cb^N$ composite quantum systems are investigated. It is shown that all quantum states $ρ$ with positive partial transposes and rank $r(ρ)\leq N$ are separable.

Latex, 15 pages