Cosmological perturbations in a big-crunch–big-bang space-time
نویسندگان
چکیده
منابع مشابه
Cosmological perturbations in the 5D Big Bang
evolution. We conclude that, unfortunately, the spectrum is very tilted, with spectral index ns = 3. The amplitude of fluctuations at horizon crossing is given by < (δρ/ρ) >∼ (R0/d)2S−1 E k, where SE 1 is the Euclidean action of the instanton describing the nucleation of a bubble and k is the wavenumber in units of the curvature scale. The spectrum peaks on the smallest possible relevant scale,...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2004
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.69.106005