Equation 71 · A Reference Frame Becomes Classical by Publishing Its Orientation
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The simulation will therefore use QFI as a diagnostic, not as the definition of publicity. For each fragment it will calculate a local quantum Fisher matrix where feasible, optimize or approximate a covariant measurement for the global loss, and directly estimate . A fragment with high local QFI but multiple globally ambiguous orientations may fail the operational threshold. Conversely, a fragment can pass a coarse angular threshold without saturating the local bound.
Sources cited in the article section
- [9] Statistical Distance and the Geometry of Quantum States ↗
- [10] Quantum Estimation for Quantum Technology ↗
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