Could We Get a Scary Quantum Even without Tangle?

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Chinese researchers claim to have passed Bell's test – designed to determine whether non-local quantum correlations can emerge from other quantum properties than intrication – without using intrigued particles. Known as one of the most rigorous tests in quantum physics, this non-locality test had, so far, never been validated in the absence of intrication. This result would be based on a surprising property: the "quantum indiscernability by path…

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Particles of light travelling through a labyrinth of devices seem to have passed a famous test for entanglement – without being entangled at all Light particles seem to have a quantum strangeness even when they are not entangled Particles that do not seem to be entangled have obtained a high score on a famous test [...]