Considering the cosmology with mythological form of consciousness era as the primary base of metaphysical form and the basis of development toward an integrated cosmology, political ideas has been placed in an organic link with a metaphysical system in the ancient Persians as well as Chinese political thought. Based on considerable similarities among cosmological systems in civilizations e.g....

We present a new solution in the heterotic M–theory in which the metric depends on (cosmic) time. The solution preserves N = 1 supersymmetry in 4 dimensions in the leading order of the κ2/3 expansion. It is the first example of the time–dependent supersymmetric solution in M–theory on S/ZZ2. It describes expanding 4–dimensional space–time with shrinking orientifold interval and static Calabi–Ya...

Neutrinos are the among the most abundant particles in the universe. This means that they have a profound impact on many different aspects of cosmology, from the question of leptogenesis in the very early universe, over big bang nucleosynthesis, to late time structure formation. At late times (T ∼<TEW) neutrinos mainly influence cosmology because of their energy density and, even later, their m...

The question of how distant starlight can be seen in a young Universe has received much attention within creationist research. But creationist cosmological models need to explain much else in addition to the passage of light across vast distances. On both large and small cosmic scales there is a diverse range of trends, patterns, and phenomena that beckon some kind of explanation. Many of these...

We consider non-tachyonic hybrid inflation in the context of the braneworld cosmology. When one considers models for brane inflation, hybrid inflation is a natural consequence of the tachyon condensation if it appears at the end of inflation. In this case, however, reheating is a difficult problem due to the peculiar properties of the tachyon. In this paper we show some models for brane inflati...

For general relativistic spacetimes filled with an irrotational perfect fluid a generalized form of Friedmann’s equations governing the expansion factor of spatially averaged portions of inhomogeneous cosmologies is derived. The averaging problem for scalar quantities is condensed into the problem of finding an ‘effective equation of state’ including kinematical as well as dynamical ‘backreacti...

Banks has proposed a relation between the scale of supersymmetry breaking and the cosmological constant in de Sitter space. His proposal has a natural extension to a general FRW cosmology, in which the supersymmetry breaking scale is related to the Hubble parameter. We study one consequence of such a relation, namely that coupling constants change as the universe evolves. We find that the most ...

In this letter, we have considered that the universe is filled with normal matter and variable modified Chaplygin gas. Also we have considered the interaction between normal matter and variable modified Chaplygin gas in FRW universe. Then we have considered a correspondence between the holographic dark energy density and interacting variable modified Chaplygin gas energy density. Then we have r...

After a brief review of the axion solution of the strong CP problem, its supersymmetric extension and the superstring axion are discussed. I also present one interesting cosmological scenario, the axino-gravitino cosmology, for the large scale structure of the universe. The standard model describes the low energy phenomena very successfully with 19 free parameters given by Quarks : 6 masses + 4...