Recent content by JuneSpring25

This might be daft question, but in the entanglement experiment, (if measured on the same axis) why can't the two world banches be: A spin up B spin up A spin down B spin down why must be they be opposite according to Many Worlds?

Hello, I found this paper by Tim Palmer really interesting, about trying to develop a determinist, hidden variables model that doesn't need 'conspiracy' to explain away experimental results around entanglement...

Thank you both for the comments. To follow up, David Deutsch argues for a local interpretation here. I note this is an old paper. https://arxiv.org/pdf/quant-ph/9906007 Does anyone know if he has changed his mind on this or this has been superseded by new information?

Hello, I'd appreciate some help with understanding how the MWI deals wtih nonlocality. My understanding is most versions of MWI do not include non-locality. To start off this is my understanding of a potential entanglement expeirment: Two particles A and B are entangled then the particles...

Ah, thank you. So how do MWI explain the interference pattern?

Hello, Looking for some help on this one! As I understand it, most many world interpretations explain the interference after the slit experiment as weak interference between separate universes / branches before they decohere (I know not everyone finds it helpful to use the term 'universes' but...

Not sure if I'm putting this in the right place! I have a question about probability and conscious observers. Aside from other arguments for and against a multiverse, does the idea that a multiverse could contain a vast number of consicous observes make it more likely, given that we find...

Thank you for the answers. Do we know that the tiny differentiations we see that create galaxies etc, are caused by quantum mechanics? Could there have been a small amount of unevenness in the original energy state that created differences in in the way the universe 'unfolded' or did the...

Oh thank you. Does the energy need to be uniform at the start of the big bang? Could it be in some way unevenly distributed?

In big bang theories where our universe begins from a singularity (ignoring other theories just now), what would happen if the universe didn't begin as a single point but rather began as energy in an uneven shape? Would we be able to tell from the way the universe is now? Do we know that if the...

All the replies much appreciated! I shall go and ponder... :smile:

I've been reading about how language around virtual particle fluctuations is metaphorical. This is helpful: https://www.physicsforums.com/insights/vacuum-fluctuation-myth/ I'm just trying to understand a bit more from a layman's point of view. I found Matt Strassler's article 'Virtual...

Thanks, I appreciate the answers, that's really helpful. Would the Planck constants be different in these different bubbles? Do the Planck constants exist at the early inflation stage?

Hello, couple of questions about bubble universes and the physical constants. I understand in an eternal inflation scenario universes bubble off the original during the inflation phase. Firstly, according to this theory, does the new universe creation only happen at an early inflation phase of a...

As a follow up, doesn't many worlds create this scenario? If all possible outcomes are realized in some world, one of them must contain a kind of perpetual motion machine as the random fluctuations would always keep adding to it? If these are different random fluctuations to that ones in many...