Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations

被引：10

作者：

Eingorn, Maxim ^{[1
,2
]}

Brilenkov, Maxim ^{[3
]}

Vlahovic, Branislav ^{[1
,2
]}

机构：

[1] N Carolina Cent Univ, CREST, Durham, NC 27707 USA

[2] N Carolina Cent Univ, NASA Res Ctr, Durham, NC 27707 USA

[3] Odessa Natl Univ, Dept Theoret Phys & Astron Observ, UA-65082 Odessa, Ukraine

来源：

EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 08期

基金：

美国国家科学基金会;

关键词：

Compendex;

D O I：

10.1140/epjc/s10052-015-3598-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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.

引用

页数：5