On Monday, July 30, 2018 at 2:11:11 PM UTC, Jason wrote: > > > > On Mon, Jul 30, 2018 at 12:29 AM, Bruce Kellett <[email protected] > <javascript:>> wrote: > >> From: Jason Resch <[email protected] <javascript:>> >> >> >> On Mon, Jul 30, 2018 at 12:13 AM, Brent Meeker <[email protected] >> <javascript:>> wrote: >> >>> ?? Quantum computers cannot calculate anything more than classical >>> computers. There are some algorithms that allow a QC to calculate >>> something faster; but the domain and range is the same. >>> >>> So absent that reason does it follow that the wave function is merely a >>> convenient (and very accurate) tool? >>> >>> >> Tool for what? Predicting probabilities of finally measured values? >> >> What then can we say about the intermediate values and the computation >> itself? Does it exist and happen, or does the final result merely >> materialize magically like the live or dead cat? >> >> >> Does the spot on the screen behind two slits materialize magically? Or >> arise as a consequence of the interference in the one world? >> >> In many-worlds, all possible screen spots occur in different worlds. But >> the separation into distinct worlds happens only on decoherence at the >> screen -- the interference all happens in the original single world. >> > > What is the photon in each world interfering with? It's many shadow > partners in other worlds. World is a confusing term unless we define it. > We might also say the system of the photon is in many states, while the > rest of the system (us, the screen) remain in one state, until we interact > with the many-state photon system. So in that sense, you could argue the > screen and us are in one world until the decoherence. But the system of > the photons can't properly be described as any singe photon system. > > Jason >
Particles have wave properties, so you can think of a wave going through both slits and interfering with itself. This doesn't explain everything, but nothing does. AG -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
