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Equation 32 · Part 1 · The Corner of the Equivalence Principle No Experiment Has Touched

Symbol hateta_ent

η^ent\hat\eta_{ent}
η^ent\hat\eta_{ent}

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hatetaea_ent 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

hatetaea_ent 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

…not a proven, extension of Zych and Brukner’s original operator framework, and it matters to the entangled component specifically because it is one of several theory families that predict where, if anywhere, a nonzero η^ent\hat\eta_{ent} should show up. A violation confined to the entangled component alone — every other η^\hat\eta consistent with zero, η^ent\hat\eta_{ent} not — would be invisible to every experiment run to date, by the independence proof above, and would point specifically at theories in which gravity…

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