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Separability and entanglement of composite quantum systems

Quantum Physics 2009-10-30 v1
Authors: Maciej Lewenstein , Anna Sanpera
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Abstract

We provide a constructive algorithm to find the best separable approximation to an arbitrary density matrix of a composite quantum system of finite dimensions. The method leads to a condition of separability and to a measure of entanglement.

Keywords

quantum entanglement quantum correlations entanglement witnesses

Cite

@article{arxiv.quant-ph/9707043,
  title  = {Separability and entanglement of composite quantum systems},
  author = {Maciej Lewenstein and Anna Sanpera},
  journal= {arXiv preprint arXiv:quant-ph/9707043},
  year   = {2009}
}

Comments

4 pages Latex, 1 figure

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