Evolution of vacuum bubbles embedded in inhomogeneous spacetimes

被引：2

作者：

Teppa Pannia, Florencia Anabella ^{[1
,3
]}

Perez Bergliaffa, Santiago Esteban ^{[2
]}

机构：

[1] Univ Nacl La Plata, Fac Ciencias Astronom & Geofis, Grp Astrofis Relatividad & Cosmol, Paseo Bosque S-N B1900FWA, La Plata, Buenos Aires, Argentina

[2] Univ Estado Rio de Janeiro, Inst Fis, Dept Fis Teor, BR-20550013 Rio De Janeiro, Brazil

[3] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 03期

关键词：

initial conditions and eternal universe; inflation; INITIAL CONDITIONS; THIN SHELL; INFLATION; EXPANSION;

D O I：

10.1088/1475-7516/2017/03/026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the propagation of bubbles of new vacuum in a radially inhomogeneous background filled with dust or radiation, and including a cosmological constant, as a first step in the analysis of the influence of inhomogeneities in the evolution of an inflating region. We also compare the cases with dust and radiation backgrounds and show that the evolution of the bubble in radiation environments is notably different from that in the corresponding dust cases, both for homogeneous and inhomogeneous ambients, leading to appreciable differences in the evolution of the proper radius of the bubble.

引用

页数：18