Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
Cosmology and Nongalactic Astrophysics
2015-08-31 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We point out a weak side of the commonly used determination of scalar cosmological perturbations lying in the fact that their average values can be nonzero for some matter distributions. It is shown that introduction of the finite-range gravitational potential instead of the infinite-range one resolves this problem. The concrete illustrative density profile is investigated in detail in this connection.
Keywords
Cite
@article{arxiv.1407.3244,
title = {Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations},
author = {Maxim Eingorn and Maxim Brilenkov and Branislav Vlahovic},
journal= {arXiv preprint arXiv:1407.3244},
year = {2015}
}
Comments
5 pages, 2 figures