Evolution of non-linear cosmological perturbations

Details Evolution of non-linear cosmological perturbations Evolution of non-linear cosmological perturbations

2005-03-18

arxiv.org/abs/astro-ph/0503416v2

Phys.Rev.Lett. 95 (2005) 091303

Astronomy and Astrophysics

Astrophysics

4 pages, version published in PRL 95, 091303 (2005)

Scientific paper

10.1103/PhysRevLett.95.091303

We define fully non-perturbative generalizations of the uniform density and comoving curvature perturbations, which are known, in the linear theory, to be conserved on sufficiently large scales for adiabatic perturbations. Our non-linear generalizations are defined geometrically, independently of any coordinate system. We give the equations governing their evolution on all scales. Also, in order to make contact with previous works on first and second order perturbations, we introduce a coordinate system and show that previous results can be recovered, on large scales, in a remarkably simple way, after restricting our definitions to first and second orders in a perturbative expansion.

Affiliated with

Also associated with

No associations

Rating

Evolution of non-linear cosmological perturbations 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 Evolution of non-linear cosmological perturbations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of non-linear cosmological perturbations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-503108