Cutting-edge atomic clocks may soon reveal a strange possibility: time itself behaving like a quantum object, existing in multiple states at once.
Few ideas in physics feel as intuitive, yet remain as puzzling, as time. In Einstein’s theory of relativity, time is not fixed. It changes depending on motion and gravity.
When this concept is combined with quantum physics, the picture becomes even stranger. Quantum theory suggests that time itself might exist in a superposition, meaning it could pass at different rates at the same time.
A new study published in Physical Review Letters indicates that this possibility may soon be tested experimentally.
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