Kraus representation
= Kraus representation
{c}
{wiki}
Every finite-dimensional completely positive map has $T(\rho)=\sum_jK_j\rho K_j^\dagger$. It is trace preserving exactly when $\sum_jK_j^\dagger K_j=I$.
= Kraus representation
{c}
{wiki}
Every finite-dimensional completely positive map has $T(\rho)=\sum_jK_j\rho K_j^\dagger$. It is trace preserving exactly when $\sum_jK_j^\dagger K_j=I$.