Defect junctions and domain wall dynamics

• Type: Article in International Scientific Journal
• Date: 2006

Authors

P. P. Avelino (Author) Other; C.J.A.P. Martins (Author) Other; J. Menezes (Author) Other; R. menezes (Author) Other; Joana Cassilda Rodrigues Espain de Oliveira (Author) FEUP

Journal

Title: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 73 No. 123520

Pages: 1-13

ISSN: 1550-7998

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 29 Citations

ISI Web of Science

Scopus - 33 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

CORDIS: Physical sciences > Astronomy > Cosmology

Other information

Authenticus ID: P-004-KKN

Abstract (EN): 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.

Language: Portuguese

Type (Professor's evaluation): Scientific