On the comoving distance as an arc-length in four dimensions
نویسندگان
چکیده
منابع مشابه
Long distance modifications of gravity in four dimensions.
Models of this kind have been proposed as a way to generate late time acceleration without a cosmological constant1. For this to work the crossover scale has to be of the order of today’s Hubble constant: μ ∼ H0. In the Friedmann equation obtained for these theories, the modification then only becomes important at the present stage of the expansion of the Universe. Obviously the detailed predic...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2001
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2001.04392.x