Science

Physicists created a tiny universe where time emerged without a clock

What if time doesn't actually exist until something changes?

Source ScienceDaily AI Summary Updated 4h 49m ago

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What if time doesn't actually exist until something changes? Scientists at the University of Birmingham created a tiny "mini universe" using 24,000 ultracold atoms and showed that the flow of time can emerge naturally from changes inside a quantum system, without relying on any external clock.

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