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Ask a Nobel Scientist: 2022 Bay Area Winners in Chemistry and Physics Take Your Questions

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How Do You Measure a Pair of Particles?

Professor Clazier: There's no way to get that information faster than speed of light. We just had wires connecting the two distant detectors 30 feet apart or so, and brought them together. And we were able to see the signals when they arrived at the same time came from the same pair of particles. If they're, as you suggest, very far away, that's also quite possible to do.

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