The discussion centers on the Copenhagen Interpretation (CI) of quantum mechanics (QM) and its stance on the measurement problem. Under CI, a measurement apparatus does not enter a superposition of states; instead, it yields a single outcome when the Born rule is applied during measurement. The CI specifies the timing of obtaining a decisive outcome but does not elucidate the mechanism behind it. The conversation also references the Many-Worlds Interpretation (MWI) and a related paper on the randomness of decay times.
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This is what the MWI says. The CI assumes the measurement apparatus is never in a superposition of states. It says you get a single measurement result when you apply the Born rule(and do a measurement).entropy1 said:Is it still true that under the Copenhagen Interpretation the standard theory of QM tells us that a measurement apparatus gets into superposition of possible measurement outcomes and does not tell us how and when we get a single decisive outcome?
It doesn't tell how, but it does tell when. It's when a measurement is performed. Now if you wonder how then the time of decay is random, see my https://arxiv.org/abs/2010.07575 .entropy1 said:does not tell us how and when we get a single decisive outcome?