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Title: Fully stable cosmological solutions with a non-singular classical bounce

Abstract

Recently, we showed how it is possible to use a cubic Galileon action to construct classical cosmological solutions that enter a contracting null energy condition (NEC) violating phase, bounce at finite values of the scale factor and exit into an expanding NEC-satisfying phase without encountering any singularities or pathologies. One drawback of these examples is that singular behavior is encountered at some time either just before or just after the NEC-violating phase. In this Letter, we show that it is possible to circumvent this problem by extending our method to actions that include the next order L 4 Galileon interaction. In using this approach, we construct non-singular classical bouncing cosmological solutions that are non-pathological for all times.

Authors:
 [1];  [2]
  1. Princeton Univ., NJ (United States). Princeton Center for Theoretical Science
  2. Princeton Univ., NJ (United States). Princeton Center for Theoretical Science and Dept. of Physics
Publication Date:
Research Org.:
Princeton Univ., NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1333750
Alternate Identifier(s):
OSTI ID: 1366489
Grant/Contract Number:  
FG02-91ER40671
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Volume: 764; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Bouncing cosmology; Non-singular bounce; Galileon; Ghost instability; Gradient instability

Citation Formats

Ijjas, Anna, and Steinhardt, Paul J. Fully stable cosmological solutions with a non-singular classical bounce. United States: N. p., 2016. Web. doi:10.1016/j.physletb.2016.11.047.
Ijjas, Anna, & Steinhardt, Paul J. Fully stable cosmological solutions with a non-singular classical bounce. United States. doi:10.1016/j.physletb.2016.11.047.
Ijjas, Anna, and Steinhardt, Paul J. Mon . "Fully stable cosmological solutions with a non-singular classical bounce". United States. doi:10.1016/j.physletb.2016.11.047.
@article{osti_1333750,
title = {Fully stable cosmological solutions with a non-singular classical bounce},
author = {Ijjas, Anna and Steinhardt, Paul J.},
abstractNote = {Recently, we showed how it is possible to use a cubic Galileon action to construct classical cosmological solutions that enter a contracting null energy condition (NEC) violating phase, bounce at finite values of the scale factor and exit into an expanding NEC-satisfying phase without encountering any singularities or pathologies. One drawback of these examples is that singular behavior is encountered at some time either just before or just after the NEC-violating phase. In this Letter, we show that it is possible to circumvent this problem by extending our method to actions that include the next order L4 Galileon interaction. In using this approach, we construct non-singular classical bouncing cosmological solutions that are non-pathological for all times.},
doi = {10.1016/j.physletb.2016.11.047},
journal = {Physics Letters B},
number = C,
volume = 764,
place = {United States},
year = {2016},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2016.11.047

Citation Metrics:
Cited by: 19 works
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Works referencing / citing this record:

Recent discoveries from the cosmic microwave background: a review of recent progress
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  • Reports on Progress in Physics, Vol. 81, Issue 4
  • DOI: 10.1088/1361-6633/aa94d5

Horndeski theory and beyond: a review
journal, July 2019