Cosmology from higher-dimensional gravity
Qaisar Shafi,Christof Wetterich +1 more
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TLDR
In this paper, a scenario describing how the four-dimensional Friedmann cosmology may evolve from a model of gravity in 4 + D dimensions which admits spontaneous compactification of D dimensions is presented.About:
This article is published in Physics Letters B.The article was published on 1983-10-06 and is currently open access. It has received 119 citations till now. The article focuses on the topics: Big Bounce & Non-standard cosmology.read more
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Kaluza-Klein gravity
TL;DR: In this paper, the authors discuss the cosmological and astrophysical implications of extra dimensions, and conclude that none of the three approaches can be ruled out on observational grounds at the present time.
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Low-energy phenomenology of superstring-inspired E6 models
TL;DR: In this paper, the authors survey the low-energy phenomenological implications of superstring-inspired E 6 models and present experimental limits on these particles from both accelerator and non-accelerator data.
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The inflationary Universe
TL;DR: According to the inflationary universe scenario, the Universe in the very early stages of its evolution was exponentially expanding in the unstable vacuum-like state as mentioned in this paper, and at the end of the exponential expansions (inflation) the energy of a classical scalar field transforms into the energy energy of hot dense matter, and the subsequent evolution of the Universe is described by the usual hot universe theory.
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Kaluza-Klein theories
D Bailin,Alexander Love +1 more
TL;DR: Kaluza-Klein theory is developed starting from the simplest example in which a single extra spatial dimension is compactified to a circle, and a single Abelian gauge field emerges in four dimensions from the higher-dimensional metric.
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A new type of isotropic cosmological models without singularity
TL;DR: In this paper, the Einstein equations with quantum one-loop contributions of conformally covariant matter fields are shown to admit a class of nonsingular isotropic homogeneous solutions that correspond to a picture of the universe being initially in the most symmetric (de Sitter) state.
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A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
TL;DR: A new inflationary universe scenario is suggested in this paper, which is free of the shortcomings of the previous one and provides a possible solution of the horizon, flatness, homogeneity and isotropy problems in cosmology.
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Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
TL;DR: In this article, the treatment of first-order phase transitions for standard grand unified theories is shown to break down for models with radiatively induced spontaneous symmetry breaking, leading to an explanation of the cosmological homogeneity, flatness, and monopole puzzles.
A New Inflationary Universe Scenario: A Possible Solution of the Horizon, Flatness, Homogeneity, Isotropy and Primordial Monopole Problems
TL;DR: A new inflationary universe scenario is suggested in this paper, which is free of the shortcomings of the previous one and provides a possible solution of the horizon, flatness, homogeneity and isotropy problems in cosmology.
Cosmology for Grand Unified Theories With Radiatively Induced Symmetry Breaking
TL;DR: In this paper, the treatment of first-order phase transitions for standard grand unified theories is shown to break down for models with radiatively induced spontaneous symmetry breaking, leading to an explanation of the cosmological homogeneity, flatness, and monopole puzzles.