Abstract
We introduce a family of positive linear maps in the algebra of $3\times3$ complex matrices, which generalizes the seminal positive non-decomposable map originally proposed by Choi.
Necessary and sufficient conditions for decomposability are derived and demonstrated. The proposed maps offer a new method for the analysis of bound entangled states of two qutrits.
Pdf: https://arxiv.org/abs/2212.03807
