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arXiv · 1012.1124

Optimal entanglement witnesses from generalized reduction and Robertson maps

Dariusz Chruściński·Justyna Pytel
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Abstract

We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They give rise to a new class of optimal entanglement witnesses. Their structural physical approximation is analyzed. As a byproduct we provide a new examples of PPT (Positive Partial Transpose) entangled states.

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Dariusz Chruściński, Justyna Pytel. 2010-12-06. Optimal entanglement witnesses from generalized reduction and Robertson maps. https://doi.org/10.1088/1751-8113/44/16/165304

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