Recent content by jms5631

Thank you for your reply. I assumed MWI must have strong consistency requirements, but it is certainly a difficult thing to comprehend intuitively-as is much of quantum mechanics. So is it fair to stipulate the following: In any branch(or world) at any time, there is consistency/agreement...

Hello, and thank you for any input. This forum is a wonderful venue for gathering information and clarity on otherwise quite abstruse topics. I have had an enduring interest in QM interpretations for some time(and quantum mechanics generally), and find their diverse ontological and...

Hey Dmitry, I wonder which polls you are referring to, and what demographics of the physics community they represent, because MWI is surely not the most accepted interpretation in the enitre working physicist community. I'm aware of a single poll from a specific sampling of theorists that gives...

Can you clarify your views on MWI somewhat further, I'm interested. I've never heard MWI without the definite positive statement that the other worlds need exist. I think without that postulate, you'd essentially have a Quantum Darwinistic, strict decoherence type approach.

I'm sorry, but I'm not sure what you're saying or what the premise of your argument is. You seem to be mistaken in believing that stage 1 deterministic time evolution demands MWI by itself. This assuredly is not the case, and is only an interpretation of the quantum formalism. Of course...

Regardless of interpretation, the unitary time evolution of the Schrödinger equation is deterministic. That is not an area of debate, but forms an important substratum of quantum mechanics. Probabilities come from the outcomes of measurements which are(or appear to be for the MWI folks)...

Decoherence, as you know given that you use it in the context of an MWI framework, is not yet sufficient to solve the measurement problem on its own-with a few notable active areas of research that are the exceptions, namely Zurek's approaches. Decoherence provides the mechanism by which quantum...

CI doesn't say objective reality does not exist(at the quantum level, remember its existence is not contested in the classical limit), its statement is rather :the nature of reality between measurements is unknowable and the only things that can be meaningfully discussed are the outcomes of...

on a purely philosophical note, in addition to its problems with probability, I still can't fully appreciate the determinism offered by MWI. The branch *you* wind up in is entirely random, and impossible in principle to determine because there is no singular you, just many descendents on equal...

Quantum decoherence isn't explicitly referenced in CI, as it wasn't known about at the time of its formulation. However, its most salient charecteristic, that of the effective quantum- classical divide at a certain scale of largeness, is included in the copenhagen description. Effectively...

The "rotting corpse" you refer to is still the standard framework that almost all progress within the field has been composed in. Why do you have such vitriol for it, despite its excellent predictive power and economy on metaphysical suppositions? QM has introduced a wide range of...

I'm sorry if someone has already said something similar, I haven't had time to read the entire thread. It seems to me that dissatisfaction with quantum mechanics always stems from personal philosophical predilections and intuitive discomfort rather then demonstrable insufficiencies. The fact...

This is a little misleading I think, the reality of the wavefunction is one of the most debated points in quantum philosopy. I think it would be more appropriate to say that the ontology of the wavefunction is an unresolved aspect of QM, and right now different interpretations that are all...

Tegmark's "many worlds" solution is entirely mataphysical and thus in principle unobservable. I don't see how this can be a scientific resolution of the problem. Until further mathamatical and experimental progress is made, quantum decoherence doesn't seem to solve anything, other then...

Michio Kaku is quite ideologically attached to the idea of alternate universes. The explanation below he gives seems to be MWI rather then a description of decoherence, it just seems to imply that he is of the impresssion that they are inextricably linked, although this is not the consensus on...