Cosmic texture from a broken global SU(3) symmetry

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.1989· OSTI ID:538651

Barnes, C ^[1]; Turok, N ^[2]

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1. Princeton University, Joseph Henry Laboratories, P.O. Box 708, Princeton, New Jersey 08544 (United States)
2. DAMTP, Silver Street, Cambridge, CB3 9EW (United Kingdom)

We investigate the observable consequences of creating cosmic texture by breaking a global SU(3) symmetry, rather than the SU(2) case which is generally studied. To this end, we study the nonlinear {sigma} model for a totally broken SU(3) symmetry, and develop a technique for numerically solving the classical field equations. This technique is applied in a cosmological context: the energy of the collapsing SU(3) texture field is used as a gravitational source for the production of perturbations in the primordial fluids of the early universe. From these calculations, we make predictions about the appearance of the anisotropies in the cosmic microwave background radiation which would be present if the large scale structure of the universe was gravitationally seeded by the collapse of SU(3) textures. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538651
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 4 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANISOTROPY
BACKGROUND RADIATION
COSMOLOGY
MICROWAVE RADIATION
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
PERTURBATION THEORY
QUANTUM GRAVITY
SIGMA MODEL
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
TEXTURE