Evolution of domain wall networks: The Press-Ryden-Spergel algorithm

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Sousa, L (Author) Other; Avelino, PP (Author) FCUP

Journal

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

Vol. 81 No. 8

ISSN: 1550-7998

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 14 Citations

ISI Web of Science

Scopus - 14 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-7GE

DOI: 10.1103/physrevd.81.087305

Abstract (EN): The Press-Ryden-Spergel (PRS) algorithm is a modification to the field theory equations of motion, parametrized by two parameters (alpha and beta), implemented in numerical simulations of cosmological domain wall networks, in order to ensure a fixed comoving resolution. In this paper we explicitly demonstrate that the PRS algorithm provides the correct domain wall dynamics in (N + 1)-dimensional Friedmann-Robertson-Walker universes if alpha + beta/2 = N, fully validating its use in numerical studies of cosmic domain evolution. We further show that this result is valid for generic thin featureless domain walls, independently of the Lagrangian of the model.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4