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Title: Evolution of vacuum bubbles embedded in inhomogeneous spacetimes

Abstract

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.

Authors:
 [1];  [2]
  1. Grupo de Astrofísica, Relatividad y Cosmología, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n B1900FWA, La Plata (Argentina)
  2. Departamento de Física Teórica, Instituto de Física, Universidade do Estado de Rio de Janeiro, CEP 20550-013, Rio de Janeiro, Brazil. (Brazil)
Publication Date:
OSTI Identifier:
22679975
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BUBBLES; COMPARATIVE EVALUATIONS; COSMIC DUST; COSMIC RADIATION; COSMOLOGICAL CONSTANT; EVOLUTION; WAVE PROPAGATION

Citation Formats

Pannia, Florencia Anabella Teppa, and Bergliaffa, Santiago Esteban Perez, E-mail: fteppa@fcaglp.unlp.edu.ar, E-mail: sepbergliaffa@gmail.com. Evolution of vacuum bubbles embedded in inhomogeneous spacetimes. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/026.
Pannia, Florencia Anabella Teppa, & Bergliaffa, Santiago Esteban Perez, E-mail: fteppa@fcaglp.unlp.edu.ar, E-mail: sepbergliaffa@gmail.com. Evolution of vacuum bubbles embedded in inhomogeneous spacetimes. United States. doi:10.1088/1475-7516/2017/03/026.
Pannia, Florencia Anabella Teppa, and Bergliaffa, Santiago Esteban Perez, E-mail: fteppa@fcaglp.unlp.edu.ar, E-mail: sepbergliaffa@gmail.com. Wed . "Evolution of vacuum bubbles embedded in inhomogeneous spacetimes". United States. doi:10.1088/1475-7516/2017/03/026.
@article{osti_22679975,
title = {Evolution of vacuum bubbles embedded in inhomogeneous spacetimes},
author = {Pannia, Florencia Anabella Teppa and Bergliaffa, Santiago Esteban Perez, E-mail: fteppa@fcaglp.unlp.edu.ar, E-mail: sepbergliaffa@gmail.com},
abstractNote = {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.},
doi = {10.1088/1475-7516/2017/03/026},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}