Results 111 to 120 of about 4,095 (225)
, 2010 PhDInflationary cosmology is the leading explanation of the very early universe. Many different models of inflation have been constructed which fit current observational data.
Huston, Ian
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Inflation and the cosmological constant [PDF]
Physical Review D, 2012 A particular compensation-type solution of the main cosmological constant problem has been proposed recently, with two massless vector fields dynamically canceling an arbitrary cosmological constant Λ. The naive expectation is that such a compensation mechanism does not allow for the existence of an inflationary phase in the very early Universe ...
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Quantum Cosmology of Quadratic f(R) Theories with a FRW Metric
Advances in Mathematical Physics, 2017 We study the quantum cosmology of a quadratic fR theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamic of the scalar field is induced.
V. Vázquez-Báez, C. Ramírez
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Inflation and Cosmological Perturbations [PDF]
, 2010 The purpose of these lectures is to give a pedagogical introduction to inflation and the production of the primordial perturbations, as well as a review of some of the latest developments in this domain.
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Ultraviolet aspects of Peccei--Quinn Inflation [PDF]
The possibility of observing a value of the tensor-to-scalar ratio $r$ of the order $r\sim 10^{-3}$ would project us into a new era for the cosmology of the early Universe.
DAL CIN, DAVIDE
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An Investigation of Spontaneous Lorentz Violation and Cosmic Inflation [PDF]
, 2010 In this thesis we re-examine two established ideas in theoretical physics: Lorentz invariance and cosmic inflation. In the first four chapters, we (i) propose a way to hide large extra dimensions by coupling standard model fields with Lorentz ...
Tam, Heywood
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, 2015 In these lectures I review the present status of the so-called Standard Cosmological Model, based on the hot Big Bang Theory and the Inflationary Paradigm.
García-Bellido, J., García-Bellido, J
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Differentiating G-inflation from string gas cosmology using the effective field theory approach [PDF]
, 2016 A characteristic signature of String Gas Cosmology is primordial power spectra for scalar and tensor modes which are almost scale-invariant but with a red tilt for scalar modes but a blue tilt for tensor modes. This feature, however, can also be realized
Wang, Yi +8 more
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Cosmic Inflation, Quantum Information and the Pioneering Role of John S Bell in Cosmology
Universe, 2019 According to the theory of cosmic inflation, the large scale structures observed in our Universe (galaxies, clusters of galaxies, Cosmic Background Microwave—CMB—anisotropy…) are of quantum mechanical origin. They are nothing but vacuum
Jérôme Martin
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Inflation and isotropization in quintom cosmology
Journal of Cosmology and Astroparticle PhysicsAbstract This paper studies inflation and isotropization in the quintom model in the Bianchi-I, Bianchi-III, and Kantowski-Sachs backgrounds. First, we investigate inherent properties and generalize Heusler's proposition. Then by the use of the dynamical system approach, we consider the system in multiplicative and collective modes of ...
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