Two decoherence models for angular momentum systems yield commutative super-operators with unequal eigenvalues and inequivalent characterizations of classicality via density-matrix decay versus quasiprobability positivity.
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Phase-space measurements and decoherence for angular momentum systems
Two decoherence models for angular momentum systems yield commutative super-operators with unequal eigenvalues and inequivalent characterizations of classicality via density-matrix decay versus quasiprobability positivity.