[PDF] The Primordial Density Perturbation eBook

Author : David H. Lyth
Publisher : Cambridge University Press
Page : 516 pages
File Size : 28,21 MB
Release : 2009-06-11
Category : Science
ISBN : 1139643746

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The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the Universe. It carries clues to the types of physical phenomena active in that extreme high-density environment. Through its evolution, generating first the observed cosmic microwave background anisotropies and later the distribution of galaxies and dark matter in the Universe, it probes the properties and dynamics of the present Universe. This graduate-level textbook gives a thorough account of theoretical cosmology and perturbations in the early Universe, describing their observational consequences and showing how to relate such observations to primordial physical processes, particularly cosmological inflation. With ambitious observational programmes complementing ever-increasing sophistication in theoretical modelling, cosmological studies will remain at the cutting edge of astrophysical studies for the foreseeable future.

Author : David H. Lyth
Publisher : Cambridge University Press
Page : 516 pages
File Size : 23,11 MB
Release : 2009-06-11
Category : Science
ISBN : 052182849X

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The origin and evolution of the primordial perturbation is key to understanding structure formation in the earliest stages of the Universe. Giving a thorough account of theoretical cosmology and perturbations in the early Universe, this graduate-level textbook describes their observational consequences and how such observations relate to primordial physical processes.

Author : Patrick Peter
Publisher : Oxford University Press
Page : pages
File Size : 14,85 MB
Release : 2013-02-14
Category : Science
ISBN : 0191549258

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This 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. The book is divided into three parts. Part 1 summarises the fundamentals in theoretical physics needed in cosmology (general relativity, field theory, particle physics). Part 2 describes the standard model of cosmology and includes cosmological solutions of Einstein equations, the hot big bang model, cosmological perturbation theory, cosmic microwave background anisotropies, lensing and evidence for dark matter, and inflation. Part 3 describes extensions of this model and opens up current research in the field: scalar-tensor theories, supersymmetry, the cosmological constant problem and acceleration of the universe, topology of the universe, grand unification and baryogenesis, topological defects and phase transitions, string inspired cosmology including branes and the latest developments. The book provides details of all derivations and leads the student up to the level of research articles.

Author : Mindaugas Karciauskas
Publisher : LAP Lambert Academic Publishing
Page : 236 pages
File Size : 14,86 MB
Release : 2010-10
Category :
ISBN : 9783838369815

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The study of the primordial curvature perturbation gives us insights into the origin and structure of the Universe and the laws of physics which operate at energies much higher than achievable in experiments. In this work the author briefly reviews the Hot Big Bang theory of the Universe and cosmological inflation. He describes how quantum fluctuations of light scalar fields during inflation are converted into the classical perturbation which can seed the growth of galaxies and galaxy clusters. In the second half of the book the author demonstrates that quantum fluctuations of vector fields can be responsible for the total or part of the primordial curvature perturbation too. In general this perturbation has a distinct observational signature - statistically anisotropic temperature irregularities in the Cosmic Microwave Background, which could be measured by the Planck satellite in the very near future. These ideas are explored using several mechanisms to break the conformal invariance of the vector field and generate the curvature perturbation. The book should be useful for students studying cosmology and researchers in the area of cosmological perturbations.

Author : Giovanni Montani
Publisher : World Scientific
Page : 617 pages
File Size : 33,76 MB
Release : 2011
Category : Science
ISBN : 9814271004

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Primordial Cosmology deals with one of the most puzzling and fascinating topics debated in modern physics - the nature of the Big Bang singularity. The authors provide a self-consistent and complete treatment of the very early Universe dynamics, passing through a concise discussion of the Standard Cosmological Model, a precise characterization of the role played by the theory of inflation, up to a detailed analysis of the anisotropic and inhomogeneous cosmological models. The most peculiar feature of this book is its uniqueness in treating advanced topics of quantum cosmology with a well-traced link to more canonical and pedagogical notions of fundamental cosmology. This book traces clearly the backward temporal evolution of the Universe, starting with the Robertsonndash;Walker geometry and ending with the recent results of loop quantum cosmology in view of the Big Bounce. The reader is accompanied in this journey by an initial technical presentation which, thanks to the fundamental tools given earlier in the book, never seems heavy or obscure.

Author : Konstantinos Dimopoulos
Publisher : CRC Press
Page : 285 pages
File Size : 33,96 MB
Release : 2020-11-24
Category : Science
ISBN : 1351174851

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Cosmic inflation and dark energy hold the key to the origin and the eventual fate of the Universe. Despite the increasing prominence of these subjects in research and teaching over the past decade or more, no introductory textbook dedicated to these topics has been previously published. Dr. Konstantinos Dimopoulos is a highly regarded expert in the field, and an experienced communicator of the subject to students. In this book, he provides advanced undergraduate and early graduate students with an accessible introduction and equips them with the tools they need to understand the cosmology of cosmic inflation and dark energy. Features: Provides a concise, pedagogical "crash course" in big bang cosmology, focusing on the dynamics and the history of the Universe, with an emphasis on the role of dark energy Chapters contain questions and problems for readers to test their understanding The first book to make cosmic inflation and dark energy accessible to students

Author : P. Binetruy
Publisher : Springer Science & Business Media
Page : 638 pages
File Size : 19,21 MB
Release : 2007-07-03
Category : Science
ISBN : 3540453342

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This book reviews the interconnection of cosmology and particle physics over the last decade. It provides introductory courses in supersymmetry, superstring and M-theory, responding to an increasing interest to evaluate the cosmological consequences of these theories. Based on a series of extended courses providing an introduction to the physics of the very early universe, in the light of the most recent advances in our understanding of the fundamental interactions, it reviews all the classical issues (inflation, primordial fluctuations, dark matter, baryogenesis), but also introduces the most recent ideas about what happened at the Big Bang, and before.

Author : L. F. Abbott
Publisher : World Scientific
Page : 714 pages
File Size : 46,25 MB
Release : 1986
Category : Science
ISBN : 9789971978648

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Inflation has revolutionized cosmology primarily because it has eliminated the dependence of cosmological modelling on initial conditions. Thus inflationary cosmology is able to account for the present universe starting from a wide range of initial conditions. This volume reviews the presents state of subject. Each chapter consists of a brief introduction followed by reprints of important papers. Experts in the field are also provided with a unifying view point.