A new model of nonlocal modified gravity
نویسندگان
چکیده
منابع مشابه
A New Model of Nonlocal Modified Gravity
In spite of the great successes of General Relativity (GR) it has not got the status of a complete theory of gravity. To modify GR there are motivations coming from its quantum aspects, string theory, astrophysics and cosmology. For example, cosmological solutions of GR contain Big Bang singularity, and Dark Energy as a cause for accelerated expansion of the Universe. This initial cosmological ...
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A nonlocal form of the effective gravitational action could cure the unboundedness of euclidean gravity with Einstein action. On sub-horizon length scales the modified gravitational field equations seem compatible with all present tests of general relativity and post-Newtonian gravity. They induce a difference in the effective Newton’s constant between regions of space with vanishing or nonvani...
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ژورنال
عنوان ژورنال: Publications de l'Institut Mathematique
سال: 2013
ISSN: 0350-1302,1820-7405
DOI: 10.2298/pim1308187d