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Related papers: X-type and Y-type junction stability in domain wal…

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The role of domain wall junctions in Carter's pentahedral model is investigated both analytically and numerically. We perform, for the first time, field theory simulations of such model with various initial conditions. We confirm that there…

High Energy Physics - Theory · Physics 2009-11-05 P. P. Avelino , J. C. R. E. Oliveira , R. Menezes , J. Menezes

This work confirms the stability of a class of domain wall lattice models that can produce accelerated cosmological expansion, with pressure to density ratio $w=-1/3$ at early times, and with $w=-2/3$ at late times when the lattice scale…

High Energy Physics - Phenomenology · Physics 2009-12-01 Brandon Carter

We use a combination of analytic tools and an extensive set of the largest and most accurate three-dimensional field theory numerical simulations to study the dynamics of domain wall networks with junctions. We build upon our previous work…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. P. Avelino , C. J. A. P. Martins , J. Menezes , R. Menezes , J. C. R. E. Oliveira

We study the evolution of cosmological domain walls in models with asymmetric potentials. Our research goes beyond the standard case of spontaneous breaking of an approximate symmetry. When the symmetry is explicitly broken the potential…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-04 Tomasz Krajewski , Jan Henryk Kwapisz , Zygmunt Lalak , Marek Lewicki

It has been shown that superconducting domain walls in a model with U(1) x Z2 symmetry can form long-lived loops called kinky vortons from random initial conditions in the broken field and a uniform charged background in (2+1) dimensions.…

High Energy Physics - Theory · Physics 2010-12-24 Richard A. Battye , Jonathan A. Pearson

We study the dynamics of domain walls in a double-field model in which the U(1) symmetry is broken both spontaneously and explicitly. The global U(1) symmetry of the system is restored when the symmetry breaking parameter $\epsilon$ is set…

Mathematical Physics · Physics 2023-05-18 Nematollah Riazi , Marzieh Peyravi , Shahram Abbassi

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…

High Energy Physics - Phenomenology · Physics 2009-11-11 P. P. Avelino , C. J. A. P. Martins , J. Menezes , R. Menezes , J. C. R. E. Oliveira

We study the formation of domain walls in a phase transition in which an S_5\times Z_2 symmetry is spontaneously broken to S_3\times S_2. In one compact spatial dimension we observe the formation of a stable domain wall lattice. In two…

High Energy Physics - Phenomenology · Physics 2009-11-10 Nuno D. Antunes , Levon Pogosian , Tanmay Vachaspati

The ensemble of Euclidean gluon field configurations represented by the domain wall network is considered. A single domain wall is given by the sine-Gordon kink for the angle between chromomagnetic and chromoelectric components of the gauge…

High Energy Physics - Phenomenology · Physics 2015-06-18 Sergei N. Nedelko , Vladimir E. Voronin

We introduce domain-wall (DW) states in the bimodal discrete nonlinear Schr{\"{o}}dinger equation, in which the modes are coupled by cross phase modulation (XPM). By means of continuation from various initial patterns taken in the…

Pattern Formation and Solitons · Physics 2009-11-10 P. G. Kevrekidis , Boris A. Malomed , D. J. Frantzeskakis , A. R. Bishop

QCD was shown to have a nontrivial vacuum structure due to the topology of the theta = theta+2*pi*n parameter. As a result of this nontrivial topology, in the large N_c limit, quasi-stable QCD domain walls appear, characterized by a…

High Energy Physics - Phenomenology · Physics 2010-02-03 Michael McNeil Forbes , Ariel R. Zhitnitsky

We explore the idea of a network of defects to live inside a domain wall in models of three real scalar fields, engendering the Z_2 x Z_3 symmetry. The field that governs the Z_2 symmetry generates a domain wall, and entraps the hexagonal…

High Energy Physics - Theory · Physics 2009-12-30 D. Bazeia , F. A. Brito

In pattern-forming systems, competition between patterns with different wave numbers can lead to domain structures, which consist of regions with differing wave numbers separated by domain walls. For domain structures well above threshold…

patt-sol · Physics 2015-06-26 David Raitt , Hermann Riecke

The purpose of this article is to explore the properties of integrable, purely transmitting, defects placed at the junctions of several one-dimensional domains within a network. The defect sewing conditions turn out to be quite restrictive…

High Energy Physics - Theory · Physics 2020-12-02 E. Corrigan , C. Zambon

We study the asymptotic scaling properties of domain wall networks with three different tensions in various cosmological epochs. We discuss the conditions under which a scale-invariant evolution of the network (which is well established for…

High Energy Physics - Phenomenology · Physics 2015-03-03 M. F. Oliveira , C. J. A. P. Martins

We study, within the Nambu-Goto approximation, the stability of massive string junctions under the influence of the tensions of three strings joining together in a Y-type configuration. The relative angle $\beta$ between the strings at the…

High Energy Physics - Theory · Physics 2015-06-23 A. Avgoustidis , A. Pourtsidou , M. Sakellariadou

We describe the results of the largest and most accurate three-dimensional field theory simulations of domain wall networks with junctions. We consider a previously introduced class of models which, in the limit of large number $N$ of…

Astrophysics · Physics 2008-11-26 P. P. Avelino , C. J. A. P. Martins , J. Menezes , R. Menezes , J. C. R. E. Oliveira

We present a generic Z_2 x Z_2-invariant scalar field theory with four real scalar fields in six-dimensional Minkowskian spacetime which yields solutions consisting of two intersecting domain-wall kinks which are each paired by fields with…

High Energy Physics - Phenomenology · Physics 2013-06-20 Benjamin D. Callen , Raymond R. Volkas

The dynamics of string junctions and their influence on the evolution of cosmic superstring networks are studied in full detail. We review kinematic constraints for colliding strings in a Friedmann-Lema\^itre-Robertson-Walker background and…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-27 I. Yu. Rybak , A. Avgoustidis , C. J. A. P. Martins

Building upon [1], this study aims to introduce fractal geometry into graph theory, and to establish a potential theoretical foundation for complex networks. Specifically, we employ the method of substitution to create and explore…

Dynamical Systems · Mathematics 2024-05-29 Nero Ziyu Li
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