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The Universe
After developing his Special Theory of Relativity (1905), which does not include gravity in its considerations, Einstein spent the next ten years...
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Early Stages of the Expansion of the Universe
AbstractThe paper is devoted to the early stages of the expansion of the universe. Baryogenesis, the change of epochs during the expansion of the...
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Background Components of the Universe
AbstractThe paper examines various background components of the universe, such as relic photons, neutrinos and gravitons, primordial black holes,...
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Matter Universe
Extrapolating the measured mass density of the universe to near a time when the universe’s mass converged 13.7 BYA, suggests temperatures and...
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Lorentzian Robin Universe
In this paper, we delve into the gravitational path integral of Gauss-Bonnet gravity in four spacetime dimensions, in the mini-superspace...
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The Dark Universe
The important question of the real mass density in the universe, which is essential for the determination of the age of the universe.
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The Many Universe Hypothesis
The Many Universe Hypothesis suggests that there are many more universes beyond ours, where some are probably similar to ours but not identical, and...
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An Expanding Universe
Shortly after completing the general theory of relativity, Einstein went on to apply his new theory to the universe as a whole. The structure of the...
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On the Accelerated Expansion of the Universe
AbstractIf we look from a quantum perspective, the most natural way in which the universe can be created is in entangled pairs whose time flow is...
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On the origin and fate of our universe
This brief review, intended for high energy and astrophysics researchers, explores the implications of recent theoretical advances in string theory...
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Universe inflation and nonlinear electrodynamics
We analyse the inflation of the universe when the source of gravity is electromagnetic fields obeying nonlinear electrodynamics, with two parameters...
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The Universe and Life
The idea that the Earth, our home, an insignificant fragment of an enormous Universe made up of hundreds of billions of galaxies, could be the only...
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The Problems of Modern Cosmology: The Very Early Universe
AbstractThe paper discusses the main problems of modern cosmology, particularly those related to the very early universe.
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Early universe in quantum gravity
We present a new picture of the early universe in finite nonlocal quantum gravity, which is Weyl invariant at the classical and quantum levels. The...
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The Immensity of the Universe
The universe is filled with energy that can take on different forms. For instance, matter is energy. There may be two distinct types of matter in the...
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Amended FRW universe: thermodynamics and heat engine
Thermodynamics of non-flat Amended Friedmann–Robertson–Walker (AFRW) universe with cosmological constant as thermodynamic pressure is studied. The...
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Gaussian quantum steering for continuous variables sharing in an expanding universe
Realistic quantum systems are affected by the expanding universe in their preparation and quantum information processing. In this paper, we study the...
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Identification of basins of attraction in the local Universe
The structure in the Universe is believed to have evolved from quantum fluctuations seeded by inflation in the early Universe. These fluctuations...
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Cascade Relaxation of the Gravitating Vacuum as a Generator of the Evolving Universe
The cascade relaxation of a polarized vacuum in the expanding Universe is a chain of evolutionary epochs of decreasing its density with the exit of...
