Quantum mappings, design and Sudoku: cardinality as measure of "quantumness", unistochasticity

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Interesting.

Using Wolfram Quantum Framework, this AME can be tested like this:

1/36 QuantumPartialTrace[
     QuantumState[N@Flatten@AME46, 6]["Bipartition", #], {1}] == 
   QuantumState["UniformMixture", 36] & /@ Subsets[Range[4], {2}]

{True, True, True, True, True, True}

Directly testing all six bipartitions to be equal to the uniform mixture.

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