The big bang may never have happend.

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KeepYourChinUp
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http://arxiv.org/pdf/1404.3093v3.pdf

Pretty interesting although highly speculative stuff from these two chaps. It takes the Raychaudhuri equation and replaces the geodesics with Bohmian trajectories (from Bohm's quantum analogue of the Hamilton-Jacobi equation). Turns out when you do a few substitutions on this quantum Raychaudhuri equation, you get the Friedmann equations with a few extra terms, one of which looks like a cosmological constant and another of which eliminates the big bang singularity.
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indigobluesss
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#2
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(Original post by KeepYourChinUp)
http://arxiv.org/pdf/1404.3093v3.pdf

Pretty interesting although highly speculative stuff from these two chaps. It takes the Raychaudhuri equation and replaces the geodesics with Bohmian trajectories (from Bohm's quantum analogue of the Hamilton-Jacobi equation). Turns out when you do a few substitutions on this quantum Raychaudhuri equation, you get the Friedmann equations with a few extra terms, one of which looks like a cosmological constant and another of which eliminates the big bang singularity.
My friend mentioned this yesterday, I think it'd be interesting to see the results of the testing
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Icecream1
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#3
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(Original post by KeepYourChinUp)
http://arxiv.org/pdf/1404.3093v3.pdf

Pretty interesting although highly speculative stuff from these two chaps. It takes the Raychaudhuri equation and replaces the geodesics with Bohmian trajectories (from Bohm's quantum analogue of the Hamilton-Jacobi equation). Turns out when you do a few substitutions on this quantum Raychaudhuri equation, you get the Friedmann equations with a few extra terms, one of which looks like a cosmological constant and another of which eliminates the big bang singularity.
Hmm....

An interesting paper to follow but surely you can change the math to make it come to many conclusions. Some of the best theories we have are by "fudging" the math. It is a bit like the string theorists saying their are 12 (or whatever the number is)dimensions just because the maths indicates even though there hasn't been any observation.

Please post more of these things, very interesting
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KeepYourChinUp
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(Original post by Icecream1)
Hmm....

An interesting paper to follow but surely you can change the math to make it come to many conclusions. Some of the best theories we have are by "fudging" the math. It is a bit like the string theorists saying their are 12 (or whatever the number is)dimensions just because the maths indicates even though there hasn't been any observation.

Please post more of these things, very interesting
I'll admit when you're working with such complex mathematics sometimes you can get a few different answers. It's still early days and with nothing but an equation with a possible cosmological constant, it's way to premature to jump to conclusions.

I'll be paying special attention to this though.
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