Cosmic strings in an expanding spacetime

We study string solutions in an expanding Friedmann-Robertson-Walker (FRW) spacetime. The back reaction of the string on the spacetime has been ignored so that the background stays Friedmannian throughout the evolution. By numerically integrating the field equations in both radiation- and matter-dom...

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Veröffentlicht in:	Phys. Rev. D; (United States) 1988-03, Vol.37 (6), p.1401-1405
Hauptverfasser:	STEIN-SCHABES, J. A, BURD, A. B
Format:	Artikel
Sprache:	eng
Schlagworte:	640106 - Astrophysics & Cosmology- Cosmology 645400 - High Energy Physics- Field Theory ANALYTICAL SOLUTION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPOSITE MODELS COSMOLOGICAL MODELS DATA Exact sciences and technology EXPANSION EXTENDED PARTICLE MODEL GALACTIC EVOLUTION General relativity and gravitation Gravity in more than four dimensions, kaluza-klein theory, unified field theories alternative theories of gravity INFORMATION MATHEMATICAL MODELS NUMERICAL DATA PARTICLE MODELS PHASE TRANSFORMATIONS Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUARK MODEL SPACE-TIME STRING MODELS THEORETICAL DATA
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Zusammenfassung:	We study string solutions in an expanding Friedmann-Robertson-Walker (FRW) spacetime. The back reaction of the string on the spacetime has been ignored so that the background stays Friedmannian throughout the evolution. By numerically integrating the field equations in both radiation- and matter-dominated eras, we discover some new oscillatory solutions. The possible damping of these oscillations is discussed. For late times the solution becomes identical to the static one.
ISSN:	0556-2821 1089-4918
DOI:	10.1103/PhysRevD.37.1401