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Padmanabhan is guilty of another interesting paper - Solution to the cosmological constant problem, http://arxiv.org/abs/1302.3226. Any thoughts?
Well, these sorts of ideas are a dime a dozen, but it's great that it offers a nice connection between the value of the cosmological constant and something that we might hope to observe at some point in the future (the energy scale of inflation).Chronos said:Padmanabhan is guilty of another interesting paper - Solution to the cosmological constant problem, http://arxiv.org/abs/1302.3226. Any thoughts?
Sorry, I don't recall any offhand. They generally just don't interest me. I just know that I see them relatively frequently.akr6 said:Hi Chalnoth,
Would you point out to me what other ideas of this sort exist? His work offers a nice picture, and prediction, of the CC. It is also motivated by well known connection between gravity and thermodynamics. So I'm curious to see what other directions lead to explanations of the CC with as much results and are as well "motivated".
The cosmological constant problem is the discrepancy between the predicted value of the cosmological constant in the equations of general relativity and the observed value of the cosmological constant in our universe.
This problem is considered a major challenge because the predicted value of the cosmological constant is approximately 120 orders of magnitude larger than the observed value, making it one of the largest discrepancies between theory and observation in physics.
Some proposed solutions include the anthropic principle, which suggests that our universe has the observed value of the cosmological constant because it is necessary for the existence of life, and the idea of a dynamical cosmological constant, where the value of the cosmological constant changes over time.
Dark energy, which is responsible for the acceleration of the expansion of our universe, is often linked to the cosmological constant problem. Some theories suggest that dark energy is related to the cosmological constant, but this connection has yet to be proven.
While there have been many proposed solutions to the cosmological constant problem, none have been widely accepted or proven. The search for a solution is ongoing and it may take many more years of research and experimentation before a definitive answer is found.