Haagerup's inequality and additivity violation of the Minimum Output Entropy
classification
🧮 math.OA
math-phmath.MP
keywords
additivityentropyhaagerupinequalityminimumoutputproofrandom
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We give a simple and conceptual proof of the fact that random unitary channels yield violation of the Minimum Output Entropy additivity. The proof relies on strong convergence of random unitary matrices and Haagerup's inequality.
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