Positive unital circuits are a new tractable probabilistic model family built from quantum POVMs, and their decomposable variant is the first non-monotone circuit class not requiring structured decomposability.
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A Quantum Information Theoretic Approach to Tractable Probabilistic Models
Positive unital circuits are a new tractable probabilistic model family built from quantum POVMs, and their decomposable variant is the first non-monotone circuit class not requiring structured decomposability.