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Equation 91 · Part 2 · A Reference Frame Becomes Classical by Publishing Its Orientation

Symbol F

pϵ(F)p_\epsilon(F)
FF

What this part means

F is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

F is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

The estimator needs its own audit. A numerical POVM can appear successful because the orientation grid is too coarse, because training and evaluation reuse the same samples, or because Euler-angle quadrature overweights a coordinate pole. The registered protocol therefore separates optimization orientations from a fresh Haar-distributed evaluation set, repeats the result in quaternion coordinates, and includes an orientation-independent fragment as a blinded negative control. Uncertainty on pϵ(F)p_\epsilon(F) will be reported before the integer threshold converts it into redundancy. Otherwise a probability sitting one Monte Carlo error bar either side of 1-δ\delta could make the public witness…

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A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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