Suppose we measure a normalized state ##|\Psi \rangle = \alpha _0 | \lambda _0 \rangle + \alpha _1 | \lambda _1 \rangle + \alpha _2 | \lambda _2 \rangle + ...## with ##| \lambda _i \rangle## the eigenvalues of the measured observable. Is it true that, in the CI, the wavefunction collapses into an arbitrary eigenvector ##| \lambda _i \rangle## with probability ##\alpha _i^* \alpha _i##, while in MWI, all possible 'collapses' ##| \lambda _i \rangle## are realized simultaneously in separate branches?(adsbygoogle = window.adsbygoogle || []).push({});

Which leads me to the question: what happens to the probability ##\alpha _i^* \alpha _i## in MWI?

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# B What is the difference between MWI and CI?

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