  We demonstrate that among all quantum teleportation protocols giving rise to
the same average fidelity, those with aligned Bloch vectors between input and
output states exhibit the minimum average trace distance. This defines optimal
protocols. Furthermore, we show that optimal protocols can be interpreted as
the perfect quantum teleportation protocol under the action of correlated
one-qubit channels. In particular, we focus on the deterministic case, for
which the final Bloch vector length is equal for all measurement outcomes.
Within these protocols, there exists one type that corresponds to the action of
uncorrelated channels: these are depolarizing channels. Thus, we established
the optimal quantum teleportation protocol under a very common experimental
noise.
