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Defect junctions and domain wall dynamics

P. P. Avelino1,2,*, C. J. A. P. Martins1,3,†, J. Menezes1,‡, R. Menezes1,4,§, and J. C. R. E. Oliveira1,2,∥

  • 1Centro de Física do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
  • 2Departamento de Física da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
  • 3Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences,University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom
  • 4Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, Brazil

  • *Electronic address: ppavelin@fc.up.pt
  • †Electronic address: C.J.A.P.Martins@damtp.cam.ac.uk
  • ‡Electronic address: jmenezes@fc.up.pt
  • §Electronic address: rms@fisica.ufpb.br
  • ∥Electronic address: jeolivei@fc.up.pt
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Phys. Rev. D 73, 123520 – Published 15 June, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.123520

Abstract

We study a number of domain wall forming models where various types of defect junctions can exist. These illustrate some of the mechanisms that will determine the evolution of defect networks with junctions. Understanding these mechanisms is vital for a proper assessment of a number of cosmological scenarios: we will focus on the issue of whether or not cosmological frustrated domain wall networks can exist at all, but our results are also relevant for the dynamics of cosmic (super)strings, where junctions are expected to be ubiquitous. We also define and discuss the properties that would make up the ideal model in terms of hypothetical frustrated wall networks, and provide an explicit construction for such a model. We carry out a number of numerical simulations of the evolution of these networks, analyze and contrast their results, and discuss their implications for our no-frustration conjecture.

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See Also

Frustrated expectations: Defect networks and dark energy

P. P. Avelino, C. J. A. P. Martins, J. Menezes, R. Menezes, and J. C. R. E. Oliveira
Phys. Rev. D 73, 123519 (2006)

Article Text

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  24. We caution the reader that a pair of Y-type junctions close together might be misidentified as an X-type junction by a careless glance at a low-resolution snapshot.

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Phys. Rev. D 73, 123520– Published 15 June, 2006
  • Received 27 April 2006

© 2006 American Physical Society

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