Mathematics – Differential Geometry
Scientific paper
2010-03-07
Mathematics
Differential Geometry
Scientific paper
We show that there are isometrically nonequivalent Robertson-Walker metrics which have the same set of geodesics. While one of these metrics satisfies the Einstein equations of pure dust without a cosmological constant, all the other describe pure dust with additional energy momentum tensor of cosmological constant type. Since each of these metrics have the same geodesics it is not clear how to distinguish experimentally between the Universes whose energy momentum tensor includes or not the cosmological constant type term.
No associations
LandOfFree
Is dark energy meaningless? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Is dark energy meaningless?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is dark energy meaningless? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-668175