Cosmology from Quantum Potential

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SUMMARY

The discussion centers on a paper proposing that the universe may have existed eternally, challenging the Big Bang theory. This model incorporates quantum correction terms to enhance Einstein's general relativity, potentially addressing issues related to dark matter and dark energy. The conversation highlights two primary approaches in cosmology: developing alternative models like Cosmic Inflation and utilizing Loop Quantum Cosmology to explore the universe's early conditions. The existing threads on this topic indicate a lack of consensus and skepticism regarding the paper's validity.

PREREQUISITES
  • Understanding of Einstein's theory of general relativity
  • Familiarity with quantum mechanics and quantum gravity theories
  • Knowledge of Cosmic Inflation and Loop Quantum Cosmology
  • Ability to interpret scientific papers in theoretical physics
NEXT STEPS
  • Research the implications of Loop Quantum Cosmology on early universe models
  • Explore the concept of Cosmic Inflation and its role in modern cosmology
  • Read the paper by Ali and Das on cosmology from quantum potential
  • Investigate the relationship between dark matter, dark energy, and quantum theories
USEFUL FOR

Astronomers, physicists, cosmologists, and students interested in theoretical physics and the foundations of cosmological models.

gelatin
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I am not sure where to find people who may understand the following paper but I figured someone here might be interested and or educated enough to weigh in on this subject.
I tried with my local astronomical society and haven't heard anything back from them.
This idea is interesting to me but I don't have the background in mathematics to verify these two people's work that is the focus of the article.
Anyways I thought I'd drop it here as it doesn't look like it has been mentioned and might get bounced around and reviewed or even debunked or confirmed.
Looking forward to dropping jaws, eyes the size of saucers, and wringing of the hands too.
maybe some hair pulling...

http://phys.org/news/2015-02-big-quantum-equation-universe.html
No Big Bang? Quantum equation predicts universe has no beginning

The universe may have existed forever, according to a new model that applies quantum correction terms to complement Einstein's theory of general relativity. The model may also account for dark matter and dark energy, resolving multiple problems at once.
...
here is a link to the actual paper ( it's 4 pages long )
http://www.sciencedirect.com/science/article/pii/S0370269314009381
 
Physics news on Phys.org
We already have a thread on this here: https://www.physicsforums.com/threads/quantum-equations-suggest-the-big-bang-never-happened.797073/

gelatin said:
Looking forward to dropping jaws, eyes the size of saucers, and wringing of the hands too.
maybe some hair pulling...

Not going to happen. :wink:
From the thread linked above:

Chalnoth said:
...there's no reason to take this seriously.

It's standard knowledge within cosmology that the big bang singularity is impossible. The question remains as to what was going on in the densest times. There are two general approaches that theorists have taken in an attempt to explain the discrepancy:
1. Come up with an alternative model which, when extrapolated forward in time, gives a universe that looks like our own. Cosmic Inflation is one example of following this paradigm.
2. Take the currently-known components of our universe and extrapolate backward in time towards the singularity, but make use of a theory of quantum gravity to describe the universe at very early times. Loop Quantum Cosmology is one example here. This is also the approach taken by Ali and Das.

Since there's already a thread on this I'm going to lock this one.
 

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