Defect Junctions and Domain Wall Dynamics

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.

13 pages, 64 extremely low resolution eps files (to comply with arXiv size limits). A version with better quality figures is available from the authors

References in corpus (15)

• Cosmic String Production Towards the End of Brane Inflation
• Cosmic F- and D-strings
• Formation and evolution of cosmic D-strings
• Is the Dark Matter a Solid?
• Cosmology in a String-Dominated Universe
• Scaling of Multi-Tension Cosmic Superstring Networks
• One-scale Model for Domain Wall Network Evolution
• The Cosmological Evolution of Domain Wall Networks
• On the evolution of cosmic-superstring networks
• Cosmic String Evolution in Higher Dimensions
• Evolution of a Non-Abelian Cosmic String Network
• Frustrated Expectations: Defect Networks and Dark Energy
• Understanding Domain Wall Network Evolution
• Rigidity and stability of cold dark solid universe model
• Scaling Laws for Non-Intercommuting Cosmic String Networks

Cited by in corpus (32)

• Generalized Global Defect Solutions
• Constraints on string networks with junctions
• Velocity-Dependent Models for Non-Abelian/Entangled String Networks
• Dynamics of domain wall networks with junctions
• Scaling in a SU(2)/Z_3 model of cosmic superstring networks
• Lorentz-violating effects on topological defects generated by two real scalar fields
• Dynamics of Domain Wall Networks
• The cosmological evolution of p-brane networks
• New bounds on macroscopic scalar-field topological defects from non-transient signatures due to environmental dependence and spatial variations of the fundamental constants
• Effective Action of Domain Wall Networks
• Scaling of cosmological domain wall networks with junctions
• The effect of kinematic constraints on multi-tension string network evolution
• Domain wall network evolution in (N+1)-dimensional FRW universes
• Dynamics of Biased Domain Walls and the Devaluation Mechanism
• Fermion states on domain wall junctions and the flavor number
• Bifurcation and pattern changing with two real scalar fields
• Unified paradigm for interface dynamics
• Evolution of domain wall networks: the PRS algorithm
• Constructing networks of defects with scalar fields
• Impact of string and monopole-type junctions on domain wall dynamics: implications for dark energy
• Construction of topological defect networks with complex scalar fields
• Formation and evolution of kinky vortons
• Charge, junctions and the scaling dynamics of domain wall networks
• Stability of winding cosmic wall lattices with X type junctions
• Composite solitary waves in three-component scalar field theory: II. Three-body low-energy scattering
• Simulating the symmetron: domain walls and symmetry-restoring impurities
• Generalized sine-Gordon solitons
• Exact solutions of domain wall junctions in arbitrary dimensions
• The role of domain wall junctions in Carter's pentahedral model
• X-type and Y-type junction stability in domain wall networks
• Fields in nonaffine bundles. III. Effective symmetries and conserved currents in strings and higher branes
• Cosmological Consequences of Topological Defects: Dark Energy and Varying Fundamental Constants