question about the quantum fluctuation theory of the Big Bang

[gib65]

Hello,

 

I've been trying to understand the quantum fluctuation theory of the Big Bang lately. That's probably not the technical name of the theory, but it's the one that says the Big Bang is the result of a quantum fluctuation in the void--the spontaneous appearance of some particle or force or something that very quickly lead to a run-away inflation of spacetime and matter and energy.

 

First of all, is there any credence to this theory among scientists?

 

Second, what exactly "fluctuated"?

 

Third, if from the Big Bang was create space a time, what time was there for any "fluctuation" to occur in such that it could give rise to time and everything else in it?

 

Please keep in mind that I'm a novice when it comes to these matters and I don't understand the technical jargon that goes along with it (which includes the math). Thanks.

[Airbrush]

Those are good questions and I hope someone can answer them, if possible.

[michel123456]

Hello,

 

I've been trying to understand the quantum fluctuation theory of the Big Bang lately.(...)

Welcome to the club.

 

Other Forum members here are not member of the same club and will enjoy explain you e-ve-ry-thing.

 

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I'd suggest to go directly to this thread an ask the question again to a specialist.

Edited March 2, 2013 by michel123456

[timo]

First of all, is there any credence to this theory among scientists?

Chances are, the people who proposed it put some faith into it. The vast majority of scientists will simply not care at all. The majority of Cosmologists will probably not have an opinion about it, owing to lack of evidence for anything. On the "plus" side, it's not exactly ridiculed, either.

 

Third, if from the Big Bang was create space a time, what time was there for any "fluctuation" to occur in such that it could give rise to time and everything else in it?

The Big Bang as the beginning of time and space is a result of a non quantum-mechanical model. There is no guarantee that in a model taking into account Quantum Mechanics, this still holds true. In fact, from the very few LQG talks I attended I got the impression that at least in their world the Big Bang is indeed not the kind of singularity you have in classical models. No one really expects the classical model to be the last word or the ultimate truth, by the way. It's just that questions about the very moment of the Big Bang are so inconsequential to anything that few scientists really care.