A CHSH protocol using binarized Peres-time observables, calibrated to S=2 for any state in flat space, yields S>2 for a fixed Bell state in constant-curvature 1+1D backgrounds.
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Entangled quantum clocks as operational probes of spacetime curvature
A CHSH protocol using binarized Peres-time observables, calibrated to S=2 for any state in flat space, yields S>2 for a fixed Bell state in constant-curvature 1+1D backgrounds.