Maestro v0.1

Two-Copy Onset of Strict Superadditivity for Measured Relative Entropy

For faithful finite-dimensional state pairs, globally optimized measured relative entropy is additive at any fixed copy number n >= 2 exactly when the states commute. This Letter proves the criterion through an explicit phase-optimized two-copy ascent direction, separates coheren...

Two-Copy Onset of Strict Superadditivity for Measured Relative Entropy

For faithful finite-dimensional state pairs, globally optimized measured relative entropy is additive at any fixed copy number n >= 2 exactly when the states commute. This Letter proves the criterion through an explicit phase-optimized two-copy ascent direction, separates coheren...