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Phenomenological constraints on "impossible" measurements
Published 9 Jul 2025 in quant-ph | (2507.06767v1)
Abstract: In this Letter, we analyze an "impossible" measurement scenario presented by Sorkin. This scenario involving a joint measurement on spacelike separated systems in an intermediary region has widely been discussed in the quantum field theory measurement literature. We analyze the non-relativistic version of this paradoxical measurement scenario and consider which phenomenological constraints must be introduced from relativistic theory to remove the faster-than-light signaling.
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