Emergent scenario in mimetic gravity
Emergent scenario in mimetic gravity
复制标题
模拟重力中的紧急情况
DOI:
10.1088/1361-6382/aba223
复制
发表时间:
2020-09
影响因子:
3.5
通讯作者:
Ruanjing Zhang
中科院分区:
文献类型:
--
作者:
Qihong Huang;Bing Xu;He Huang;Feiquan Tu;Ruanjing Zhang
The emergent scenario provides a possible way to avoid the big bang singularity by assuming that the Universe originates from an Einstein static state. Therefore, an Einstein static Universe stable under perturbations is crucial to a successful implementation of the emergent mechanism. In this paper, we analyze the stability of the Einstein static Universe against the scalar perturbations in the mimetic theory and find that stable Einstein static solutions exist under certain conditions in this theory. In the original mimetic gravity, the Einstein static Universe is unstable. Then, we find that the Universe can naturally exit from the initial static state, evolve into an inflationary era and then exit from the inflationary era. Thus, the emergent scenario can be used to resolve the big bang singularity in the mimetic theory.
登录
查看更多内容
影响因子:
3
作者:
Qihong Huang;He Huang;Jun Chen;Shuai Kang
通讯作者:
Shuai Kang
影响因子:
5
作者:
A. Ganz;P. Karmakar;S. Matarrese;D. Sorokin
通讯作者:
A. Ganz;P. Karmakar;S. Matarrese;D. Sorokin
影响因子:
4.4
作者:
Guo Wen-Di;Zhong Yi;Yang Ke;Sui Tao-Tao;Liu Yu-Xiao
通讯作者:
Liu Yu-Xiao
DOI:
10.1140/epjp/i2018-11876-4
发表时间:
2018-02
期刊:
The European Physical Journal Plus
影响因子:
--
作者:
N. Hosseinkhan;K. Nozari
通讯作者:
N. Hosseinkhan;K. Nozari
影响因子:
3.5
作者:
Miao Haitao;Wu Puxun;Yu Hongwei
通讯作者:
Yu Hongwei