Scalar Field Cosmology PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Scalar Field Cosmology PDF full book. Access full book title Scalar Field Cosmology by Chervon Sergei. Download full books in PDF and EPUB format.
Author: Chervon Sergei
Publisher: World Scientific
ISBN: 9811205094
Category : Science
Languages : en
Pages : 288
Get Book Here
Book Description
This monograph discusses cosmological inflation and provides exact and slow roll solutions. It also reviews new and advanced approaches of exact solutions construction with canonical scalar fields, including application of generating functions methods, the superpotential and many others. This book presents the reduction of the Friedmann equation to the Abel equation, which is a very useful tool in cosmology. It offers new solutions and discusses its properties.Additionally, it touches upon the role of phantom scalar field cosmology and analyzes phantonical models. It describes brane cosmology with scalar fields, providing exact solutions construction using the superpotential method as well as Darboux transformations.This book provides detailed calculations throughout.
Author: Chervon Sergei
Publisher: World Scientific
ISBN: 9811205094
Category : Science
Languages : en
Pages : 288
Get Book Here
Book Description
This monograph discusses cosmological inflation and provides exact and slow roll solutions. It also reviews new and advanced approaches of exact solutions construction with canonical scalar fields, including application of generating functions methods, the superpotential and many others. This book presents the reduction of the Friedmann equation to the Abel equation, which is a very useful tool in cosmology. It offers new solutions and discusses its properties.Additionally, it touches upon the role of phantom scalar field cosmology and analyzes phantonical models. It describes brane cosmology with scalar fields, providing exact solutions construction using the superpotential method as well as Darboux transformations.This book provides detailed calculations throughout.
Author: Patrick Peter
Publisher: Oxford University Press
ISBN: 019920991X
Category : Science
Languages : en
Pages : 857
Get Book Here
Book Description
The book provides an extensive survey of all the physics necessary to understand the current developments in the field of fundamental cosmology, as well as an overview of the observational data and methods. It will help students to get into research by providing definitions and main techniques and ideas discussed today.
Author: Shawn Westmoreland
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
In this report, we discuss the four standard energy conditions of General Relativity (null, weak, dominant, and strong) and investigate their cosmological consequences. We note that these energy conditions can be compatible with cosmic acceleration provided that a repulsive cosmological constant exists and the acceleration stays within certain bounds. Scalar fields and dark energy, and their relationships to the energy conditions, are also discussed. Special attention is paid to the 1988 Ratra-Peebles scalar field model, which is notable in that it provides a physical self-consistent framework for the phenomenology of dark energy. Appendix B, which is part of joint-research with Anatoly Pavlov, Khaled Saaidi, and Bharat Ratra, reports on the existence of the Ratra-Peebles scalar field tracker solution in a curvature-dominated universe, and discusses the problem of investigating the evolution of long-wavelength inhomogeneities in this solution while taking into account the gravitational back-reaction (in the linear perturbative approximation).
Author: Valerio Faraoni
Publisher: Springer Science & Business Media
ISBN: 9781402019883
Category : Science
Languages : en
Pages : 296
Get Book Here
Book Description
Cosmology in Scalar-Tensor Gravity covers all aspects of cosmology in scalar-tensor theories of gravity. Considerable progress has been made in this exciting area of physics and this book is the first to provide a critical overview of the research. Among the topics treated are: -Scalar-tensor gravity and its limit to general relativity, -Effective energy-momentum tensors and conformal frames, -Gravitational waves in scalar-tensor cosmology, -Specific scalar-tensor theories, -Exact cosmological solutions and cosmological perturbations, -Scalar-tensor scenarios of the early universe and inflation, -Scalar-tensor models of quintessence in the present universe and their far-reaching consequences for the ultimate fate of the cosmos.
Author: D. Bailin
Publisher: CRC Press
ISBN: 100054608X
Category : Science
Languages : en
Pages : 228
Get Book Here
Book Description
Cosmology in Gauge Field Theory and String Theory focuses on the cosmological implications of the gauge theories of particle physics and of string theory. The book first examines the universe's series of phase transitions in which the successive gauge symmetries of the higher-temperature phase were spontaneously broken after the big bang, discussing relics of these phase transitions, more generic relics (baryons, neutrinos, axions), and supersymmetric particles (neutralinos and gravitinos). The author next studies supersymmetric theory, supergravity theory, and the constraints on the underlying field theory of the universe's inflationary era. The book concludes with a discussion of black hole solutions of the supergravity theory that approximates string theory at low energies and the insight that string theory affords into the microscopic origin of the Bekenstein-Hawking entropy. Cosmology in Gauge Field Theory and String Theory provides a modern introduction to these important problems from a particle physicist's perspective. It is intended as an introductory textbook for a first course on the subject at a graduate level.
Author: Alfredo Macías
Publisher: Springer Science & Business Media
ISBN: 0306471159
Category : Science
Languages : en
Pages : 329
Get Book Here
Book Description
Divided into four parts, this book covers recent developments in topics pertaining to gravity theories, including discussions on the presence of scalar fields. Part One is devoted to exact solutions in general relativity, and is mainly concerned with the results of rotating null dust beams and fluids. Also included is a panoramic vision of new research directions in this area, which would require revising certain theorems and their possible extensions within gravity theories, new aspects concerning the Ernst potentials, double Kerr spacetimes, and rotating configurations. In particular, there is a detailed discussion of totally symmetric and totally geodesic spaces, in which a method for generating (2+1)-dimensional solutions from (3+1)-dimensional solutions is given. Part Two deals with alternative theories of gravity, all of which include scalar fields and gauge fields. Here, quantum and cosmological effects, which arise from both gravity theories in four and higher dimensions and from metric-affine theories, are investigated. Part Three is devoted to cosmological and inflationary scenarios. Local effects, such as the influence of scalar fields in protogalactic interactions, numerical studies of the collapse of molecular cores, as well as the inverse inflationary problem and the blue eigenvalue spectrum of it, are considered. Moreover, the role of scalar fields as dark matter and quantum cosmology in the Bergman-Wagoner and Gowdy theories, together with the relation of the conformal symmetry and deflationary gas universe, are likewise presented. The last part of the book includes some mixed topics which are still in the experimental stage. Among them are the foundation of the Maxwell theory, a discussion on electromagnetic Thirring problems, a note on the staticity of black holes with non-minimally coupled scalar fields, and a study of the Lorentz force free charged fluids in general relativity. Thus, this book is the most up-to-date, comprehensive collection of papers on the subject of exact solutions and scalar fields in gravity and is a valuable tool for researchers in the area.
Author: A.A. Coley
Publisher: Springer Science & Business Media
ISBN: 9401703272
Category : Science
Languages : en
Pages : 203
Get Book Here
Book Description
Dynamical systems theory is especially well-suited for determining the possible asymptotic states (at both early and late times) of cosmological models, particularly when the governing equations are a finite system of autonomous ordinary differential equations. In this book we discuss cosmological models as dynamical systems, with particular emphasis on applications in the early Universe. We point out the important role of self-similar models. We review the asymptotic properties of spatially homogeneous perfect fluid models in general relativity. We then discuss results concerning scalar field models with an exponential potential (both with and without barotropic matter). Finally, we discuss the dynamical properties of cosmological models derived from the string effective action. This book is a valuable source for all graduate students and professional astronomers who are interested in modern developments in cosmology.
Author: C.J.A.P. Martins
Publisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 220
Get Book Here
Book Description
Particle physicists have been looking for scalar fields for a long time: the Higgs field, for example, is crucial in the standard particle physics model but it has not been found so far. Similarly, cosmologists have become interested in scalar fields recently and a few tantalizing hints have surfaced in the past few years which could be viewed as direct or indirect evidence for the presence of scalar fields. This workshop discussed the motivation for the existence of scalar fields in nature, assessed their consequences and identified key distinguishing characteristics that might provide strong interests in the coming years. Examples include the evidence for inflation in the early universe, the recent claim of detection of variations of the fine-structure constant (and also the electron-to-proton mass ratio) and the possible detection of a cosmic string through its graviational effect.
Author: Jens Kujat
Publisher:
ISBN:
Category : Cosmic background radiation
Languages : en
Pages : 98
Get Book Here
Book Description
Abstract: In this work we show just how common and widespread the use of scalar fields has become in modern cosmology, and we explain the underlying mechanisms for a variety of different topics. First, we examine the effect of a possible time variation in the Higgs vacuum expectation value on the Cosmic Microwave Background and determine how observational data can constrain such a time variation. Next, we turn our attention to the analysis of scalar field quintessence models in an attempt to determine how to improve our ability to distinguish between different models, which make similar predictions. As a final topic, we examine scalar field phantom models in the context of their ability to ameliorate the cosmological coincidence problem.
Author: Andrew R. Liddle
Publisher: Cambridge University Press
ISBN: 9780521575980
Category : Science
Languages : en
Pages : 420
Get Book Here
Book Description
A thorough and up-to-date graduate textbook on the most promising theory of the universe - inflationary cosmology.
