A quantum Viterbi decoder for hidden quantum Markov models achieves strictly higher scores than any classical diagonal strategy on the same observations by optimizing over coherent quantum trajectories.
Reachability and controllability of switched linear discrete-time systems,
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Quantum Viterbi Algorithm
A quantum Viterbi decoder for hidden quantum Markov models achieves strictly higher scores than any classical diagonal strategy on the same observations by optimizing over coherent quantum trajectories.