Back reaction of strings in self-consistent string cosmology
نویسندگان
چکیده
منابع مشابه
Back reaction of strings in self-consistent string cosmology.
We compute the string energy-momentum tensor and derive the string equation of state from exact string dynamics in cosmological spacetimes. 1+1, 2+1 and D-dimensional universes are treated for any expansion factor R. Strings obey the perfect fluid relation p = (γ − 1)ρ with three different behaviours: (i) Unstable for R → ∞ with growing energy density ρ ∼ R2−D, negative pressure, and γ = (D − 2...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1994
ISSN: 0556-2821
DOI: 10.1103/physrevd.50.7202