• [deleted]

Taking a Bayesian stance to probability in QM is not new, and aligns with the view that subjectivity is baked into QM. But "participatory realism" sounds like an oxymoron, or at least like wanting to have your cake and eat it, too.

Phil

a month later

"According to QBism, the wavefunction is no longer to be thought of as an objective measure of the probability of getting an outcome of a quantum experiment that two observers will necessarily both agree upon."

The wavefunction corresponds to probability (the Born Rule), precisely because squaring a Fourier Transform yields a "power spectrum"; accumulated energy per bin. Hence, when the energy arrives in discrete, equal amounts (quanta), then the accumulated-energy within each bin, divided by the quanta, yields the number of quanta per bin. In other words, it is a histogram (being inferred from a measured power spectrum), which is why the whole process yields probability estimates.

Rob McEachern

Write a Reply...