On the cosmological singularity
نویسندگان
چکیده
منابع مشابه
Singularity-free Cosmological Model
We " explain " , using a Classical approach, how the Universe was created out of " nothing " ,i.e., with no input of initial energy nor mass. The inflationary phase, with exponential expansion, is accounted for, automatically , by our equation of state for the very early Universe. This is a Universe with no-initial infinite singularity of energy density.
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Loop Quantum Cosmology (LQC), mainly due to Bojowald, is not the cosmological sector of Loop Quantum Gravity (LQG). Rather, LQC consists of a truncation of the phase space of classical General Relativity to spatially homogeneous situations which is then quantized by the methods of LQG. Thus, LQC is a quantum mechanical toy model (finite number of degrees of freedom) for LQG (a genuine QFT with ...
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During the previous decade the interest for singularity-free cosmological models was supported by the publication of the first known geodesically complete perfect fluid cosmology [1]. Until then such possibility had been overlooked due to the restrictive conditions imposed by singularity theorems [2], [3]. These theorems required physically reasonable restrictions such as energy, causality and ...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics D
سال: 2014
ISSN: 0218-2718,1793-6594
DOI: 10.1142/s021827181430016x