Uniqueness of de Sitter space

Details Uniqueness of de Sitter space Uniqueness of de Sitter space

2007-03-27

arxiv.org/abs/gr-qc/0703131v1

Class.Quant.Grav.24:3125-3138,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

22 pages, 2 figures

Scientific paper

10.1088/0264-9381/24/11/021

All inextendible null geodesics in four dimensional de Sitter space dS^4 are complete and globally achronal. This achronality is related to the fact that all observer horizons in dS^4 are eternal, i.e. extend from future infinity scri^+ all the way back to past infinity scri^-. We show that the property of having a null line (inextendible achronal null geodesic) that extends from scri^- to scri^+ characterizes dS^4 among all globally hyperbolic and asymptotically de Sitter spacetimes satisfying the vacuum Einstein equations with positive cosmological constant. This result is then further extended to allow for a class of matter models that includes perfect fluids.

Affiliated with

Also associated with

No associations

Rating

Uniqueness of de Sitter space 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 Uniqueness of de Sitter space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uniqueness of de Sitter space will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-372507