On Saturday, March 7, 2020 at 6:33:05 PM UTC-7, Brent wrote: > > > > On 3/7/2020 4:54 PM, Bruce Kellett wrote: > > On Sun, Mar 8, 2020 at 11:25 AM Alan Grayson <[email protected] > <javascript:>> wrote: > >> On Friday, March 6, 2020 at 1:22:30 PM UTC-7, Philip Thrift wrote: >>> >>> >>> Sean Carroll >>> @seanmcarroll >>> · >>> What really happens to Schrödinger’s cat is that it becomes entangled >>> with its environment, so that the wave function comes to describe multiple >>> almost-classical worlds! Happens to all of us, and nicely explained in this >>> @veritasium video. >>> >>> https://twitter.com/seanmcarroll/status/1235999175428333568 >>> >>> @philipthrift >>> >> >> I've asked this before and might have gotten some replies, but I can't >> recall what they were. Many of the quantum paradoxes arise due to a >> particular interpretation of superposition, namely, that all alternatives >> happen simultaneously (before measurement). Why can't superposition be >> interpreted to mean that each alternative has a probability of occurrence >> and nothing more? TIA, AG >> > > In a collapse or an epistemic interpretation, that is exactly what it > means. > > > The problem is saying exactly when the Schroedinger equation stops > describing the evolution and the alternative happens, i.e. the wf > collapses. In QBism it's when you learn the result and you update your > knowledge. In the Transactional interpretation it's when an interaction is > realized. I think Zurek's quantum Darwinism could be given this > interpretation: when the cross terms in the pointer basis become > sufficiently small. > > Brent >
I think the Transactional Interpretation has additional problems, such as forward (or backward?) in time signaling. Does a comparable problem arise when using Heisenberg's formulation of QM? 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/966b7008-64b1-42f4-ac9c-1cb21c880f97%40googlegroups.com.
