http://physics.princeton.edu/~steinh/lambda16.pdf
In this research article the authors suggest a cyclic universe, specifically one involving collisions of higher dimensional branes (an idea taken out of string theory), could indirectly explain why the observed cosmological constant is so small...
Yeah that is true when you're rearranging an equation, but I'm referring to just randomly adding a term in. Like if you added a positive cosmological constant to one side it might have a repulsive effect, but on another side an attractive effect? Anyway I understand my question was a bit vague...
As in Left Hand Side or Right Hand Side, a cosmological constant would supposedly have opposite effects based on which side of the equation you put the term on.
What did Einstein think his equations predicted, did he think it would predict expansion, or contraction. Would this impact which side of the equation Einstein would want to put a cosmological constant in?
Hello Everyone,
Back when Einstein was formulating General Relativity his equations just could not predict a static universe. I have read that they actually predicted an expanding Universe. Later Friedmann derived an equation from GR that would explain how an Expanding Universe would evolve...
Hey everyone,
I thought I'd introduce myself,
I'm 117, as you may be able to tell I'm a bit of a nerd and am interested in Cosmology, Astrophysics, and of course video games, whether they be from the 80's, or PC games or whatever, I'll play 'em!
I am looking forward to learning some new things...
Hey everyone,
I'm new here.
Upon reading that the Hubble rate of expansion is decreasing I have just one question, namely. Some have said that DE could be caused by a cosmological constant - found in the equations of General Relativity. How can a cosmological constant be reconciled with a...