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As long as no measurements are performed, quantum mechanics is perfectly deterministic. That is what we mean when we say that 'time evolution is unitary'. The wave function evolves in time according to Schrödinger's equation. Just as in classical physics, if you know it at a given time, you can compute it for any time in the future. The problem with ...


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To add to the other answers and lead to more self-study, I point you to papers about the Bell's Inequalities and the Free Will Theorem . These two point to the fact that the observations of experiments we have already made of quantum systems are incompatible with a number of things you would like to believe, each of which is connected to the vague meanings ...


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dice randomness vs quantum many courses introduce quantum randomness by doing a comparison with classical dices. Teachers assume that , knowing the initial conditions and the actions, one can retrieve all the informations needed to predict a single result, not just a statistic. At the opposite, it is not possible with a quantum dice : while there is a way ...



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