publication . Article . Other literature type . Preprint . 2015

Cosmic bubble and domain wall instabilities II: fracturing of colliding walls

Jonathan Braden; Jonathan Braden; J. Richard Bond; Laura Mersini-Houghton;
Open Access
  • Published: 26 Aug 2015 Journal: Journal of Cosmology and Astroparticle Physics, volume 2,015, pages 48-48 (eissn: 1475-7516, Copyright policy)
  • Publisher: IOP Publishing
  • Country: Italy
Abstract
We study collisions between nearly planar domain walls including the effects of small initial nonplanar fluctuations. These perturbations represent the small fluctuations that must exist in a quantum treatment of the problem. In a previous paper, we demonstrated that at the linear level a subset of these fluctuations experience parametric amplification as a result of their coupling to the planar symmetric background. Here we study the full three-dimensional nonlinear dynamics using lattice simulations, including both the early time regime when the fluctuations are well described by linear perturbation theory as well as the subsequent stage of fully nonlinear evo...
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Persistent Identifiers

doi: 10.1088/1475-7516/2015/08/048

Subjects
free text keywords: Astronomy and Astrophysics, High Energy Physics - Theory, Astrophysics - Cosmology and Nongalactic Astrophysics, Planar, Physics, Perturbation theory, Cosmic string, Population, education.field_of_study, education, Nonlinear system, Classical mechanics, Domain wall (magnetism), Perturbation (astronomy), Lattice field theory
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Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
, EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
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