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Quantum mechanics

Evolution stopped in its tracks

How do you watch the evolution of something that doesn't evolve? In the classical world, even posing this question would provoke raised eyebrows. But where quantum physics is involved, no question is too silly.

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Figure 1: A step forward, a step back.


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Vaidman, L. Evolution stopped in its tracks. Nature 451, 137–138 (2008).

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