VARIABLE SPEED OF LIGHT COSMOLOGY AND BIMETRIC GRAVITY: AN ALTERNATIVE TO STANDARD INFLATION
نویسندگان
چکیده
منابع مشابه
Variable Speed of Light Cosmology and Bimetric Gravity: An Alternative to Standard Inflation
A scalar-tensor bimetric gravity model of early universe cosmology is reviewed. The metric frame with a variable speed of light (VSL) and a constant speed of gravitational waves is used to describe a Friedmann-Robertson-Walker universe. The Friedmann equations are solved for a radiation dominated equation of state and the power spectrum is predicted to be scale invariant with a scalar mode spec...
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It is generally believed that inflationary cosmology explains the isotropy, large scale homogeneity and flatness as well as predicting the deviations from homogeneity of our universe. We show that this is not the only cosmology which can explain successfully these features of the universe. We review a model in which local Lorentz invariance is spontaneously broken in the very early universe, an...
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In the last decades, we have witnessed an astonishing progress in our understanding of the Early Universe and its evolution into the actual con guration we observe. General Relativity has been a key ingredient for this achievement, and it certainly provides the correct way to couple matter elds to gravity. However, in other fundamental theories (string theory, for example), we can nd an immense...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2005
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x05024031