Spontaneous symmetry breaking vacuum energy in cosmology

被引：0

作者：

周康 ^{[1
]}

岳瑞宏 ^{[2
]}

杨战营 ^{[1
]}

邹德成 ^{[1
]}

机构：

[1] Department of Physics, Northwest University

[2] Faculty of Science, Ningbo University

来源：

ChinesePhysicsB | 2012年 / 21卷 / 07期

基金：

中国国家自然科学基金;

关键词：

vacuum energy density; cosmology constant; spontaneous symmetry breaking;

D O I：

暂无

中图分类号：

O175.29 [非线性偏微分方程];

学科分类号：

070104 ;

摘要：

The gravitational effect of spontaneous symmetry breaking vacuum energy density is investigated by subtracting the flat space-time contribution from the energy in the curved space-time. We find that the remaining effective energy-momentum tensor is too small to cause the acceleration of the universe, although it satisfies the characteristics of dark energy. However, it could provide a promising explanation to the puzzle of why the gravitational effect produced by the huge symmetry breaking vacuum energy in the electroweak theory has not been observed, as it has a sufficiently small value (smaller than the observed cosmic energy density by a factor of 1032).

引用

页码：621 / 626

页数：6