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Physicists build miniature universe where time emerges without a clock

A University of Birmingham researcher used 24,000 ultracold atoms to create an isolated quantum system that expands and contracts, showing time can arise from internal changes alone.

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Quantum computing · Wikimedia — licence per file · rights
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A University of Birmingham researcher used 24,000 ultracold atoms to create an isolated quantum system that expands and contracts, showing time can arise from internal changes alone.