Wednesday, November 11, 2015

no big bang

can you construct a cosmological model with an asymptotically constant scale factor in the past, such that the age of the universe would be infinite and no big bang would have occurred? what would be a stable construction?

1 comment:

  1. This is essentially the Eddington model. The Einstein static model is an unstable fixed point in the lambda-Omega parameter space. Perturb it so that it expands or contracts, and it will collapse or expand forever. Think of the perturbation as having occurred infinitely long ago and one has the Eddington model.