A class of optimal positive maps in $M_n$

Published 8 Jul 2022 in quant-ph | (2207.03821v2)

Abstract: It is proven that a certain class of positive maps in the matrix algebra $M_n$ consists of optimal maps, i.e. maps from which one cannot subtract any completely positive map without loosing positivity. This class provides a generalization of a seminal Choi positive map in $M_3$.

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