Let's just check. If my pair chooses Alpha, then my choosing Alpha yields 0, Beta -3: so Alpha would be better.

我们来验证下,如果我对手选α,我选α得0,选β得-3,所以选α更好

耶鲁公开课 - 博弈论课程节选

By comparing a subset of the photons that Alice sends with what Bob measures, the pair can check for the presence of errors introduced by Eve.

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