21 posts · 34,719 views
When cosmologists study the universe they usually assume it is homogeneous and isotropic with linear perturbations. On large scales this turns out to be a very good approximation. Fortunately, these assumptions greatly simplify the math since:
The equations are linear and therefore easily solvable.
(Related to #1.) Fourier modes decouple meaning you can solve for each mode independent of the
... Read more »
Daniel Baumann, Alberto Nicolis, Leonardo Senatore, & Matias Zaldarriaga. (2010) Cosmological Non-Linearities as an Effective Fluid. eprint. arXiv: 1004.2488v1
Do you write about peer-reviewed research in your blog? Use ResearchBlogging.org to make it easy for your readers — and others from around the world — to find your serious posts about academic research.
If you don't have a blog, you can still use our site to learn about fascinating developments in cutting-edge research from around the world.
Research Blogging is powered by SMG Technology.
To learn more, visit seedmediagroup.com.