00681nas a2200121 4500000000100000008004100001100002400042700002100066700001900087245004700106856003700153520036900190 2020 d1 aPaulina Lewandowska1 aRyszard Kukulski1 aƁukasz Pawela00aOptimal representation of quantum channels uhttps://arxiv.org/abs/2002.055073 a

This work shows an approach to reduce the dimensionality of matrix representations of quantum channels. It is achieved by finding a
base of the cone of positive semidefinite matrices which represent quantum channels. Next, this is implemented in the Julia programming
language as a part of the QuantumInformation.jl package.