Completely positive map from M4(C) to M5(C) on positive semidefinite Matrices
Winda C. Akatch, Benard Okelo, Omolo Ongati · Journal of Mathematical Analysis and Modeling · 2022
Positive maps are essential in the description of quantum systems. However, characterization of the structure of the set of all positive maps is a challenge in mathematics and mathematical physics. We construct a linear positive map from M4 to M5 and state the conditions under which they are positive and completely positive (copositivity of positive).