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arXiv · 2212.03807

Generalizing Choi map in $M_3$ beyond circulant scenario

Anindita Bera·Giovanni Scala·Gniewomir Sarbicki·Dariusz Chruściński
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Abstract

We present a generalization of the family of linear positive maps in $M_3$ proposed thirty years ago by Cho et al. (Linear Algebra Appl. ${\bf 171}$, 213 (1992)) as a generalization of the seminal Choi non-decomposable map. The necessary and sufficient conditions for decomposability are provided.

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Anindita Bera, Giovanni Scala, Gniewomir Sarbicki, Dariusz Chruściński. 2022-12-07. Generalizing Choi map in $M_3$ beyond circulant scenario. https://arxiv.org/abs/2212.03807

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