B Big Bang as the Collapse of a Wave Function

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The discussion explores the possibility of the Big Bang being the result of the collapse of a giant wave function, a concept not widely recognized in existing literature. Participants note that while there are speculative ideas about universes emerging from quantum fluctuations, these theories lack substantial scientific backing. The conversation emphasizes that such topics may not be appropriate for deeper scientific forums. Ultimately, the idea remains largely unaddressed in credible sources, suggesting its speculative nature. The thread concludes with a decision to close further discussion on the topic.
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I don't have deep knowledge in quantum mechanics, astrophysics, or cosmology. Therefore, I'd like to ask more knowledgeable people. Is there a possibility that the Big Bang, which gave rise to our entire universe, is the result of the collapse of a giant wave function? Or is this theory inherently flawed? I couldn't find any mentions of such an idea online :\
 
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I don't know what this means, but if it's not in the published literature, that says something (and that its not suitable for PF discussion).
 
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f00gass said:
I don't have deep knowledge in quantum mechanics, astrophysics, or cosmology. Therefore, I'd like to ask more knowledgeable people. Is there a possibility that the Big Bang, which gave rise to our entire universe, is the result of the collapse of a giant wave function? Or is this theory inherently flawed? I couldn't find any mentions of such an idea online :\
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There are some speculative ideas that a universe could emerge from so-called "quantum fluctuations". If you do an Internet search, you'll find lots of material, nonsensical or otherwise. In any case, here's a popular science summary of the issue:

 
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Vanadium 50 said:
its not suitable for PF discussion
Indeed. Thread closed.
 

Thread 'Matter density right after the decoupling'

https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
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Thread 'Rutgers finds a transparent Einstein Cross - apparently a dark matter "halo".'

The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
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Thread 'Big Bang and Infinite Universe'

Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...
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