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Abstract
Using the Grothendieck approach to the tensor product of locally convex spaces, we review a characterization of positive maps as well as Belavkin-Ohya characterization of PPT states. Moreover, within this scheme, a generalization of the idea of Choi matrices for genuine quantum systems will be presented.
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Majewski, W.A. On positive maps in quantum information. Russ. J. Math. Phys. 21, 362–372 (2014). https://doi.org/10.1134/S106192081403008X
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DOI: https://doi.org/10.1134/S106192081403008X