Abstract
We investigate fidelity and entanglement breaking properties of quantum qutrit channels. We focus on channel fidelity evaluated for pure initial states and entanglement fidelity for purified mixed states (or pure entangled qutrit states) and use negativity as an entanglement measure for qutrits. We analyze properties of qutrit gates and channels based on affine transformations of qutrit Bloch vectors. We employ channel complete positivity constraints into the discussion of fidelity and entanglement behaviour.
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