A new standard model of cosmology: Time-varying fundamental constants and the evolution of the universe PDF Download

Author: F. Bakalian
Publisher: The VLS Research Foundation
ISBN:
Category : Science
Languages : en
Pages : 200

View

Book Description
A new theoretical framework is presented to explain the evolution of the universe based on the time-varying properties of the fundamental constants. A static universe with time-varying constants can explain the origin of the cosmic microwave background radiation, CMB anisotropies, the CMB cold spot, the observed redshift-distance modulus data, the origin and composition of dark matter in the universe, galaxy cluster mass estimates, Milky Way galaxy luminosity estimates, population II stellar properties, vacuum-photon interactions, energy cycling between matter, radiation and vacuum field components, time-varying Higgs mechanism and particle mass, and the observed matter-antimatter dichotomy. This is a complete theoretical framework that explains the observable universe and resolves many of the issues with modern-day cosmology.

Author: Fred Adams
Publisher: Springer Science & Business Media
ISBN: 1441982949
Category : Science
Languages : en
Pages : 148

View

Book Description
"...The Multiversal book series is equally unique, providing book-length extensions of the lectures with enough additional depth for those who truly want to explore these fields, while also providing the kind of clarity that is appropriate for interested lay people to grasp the general principles involved." - Lawrence M. Krauss Cosmic Update Covers: A novel approach to uncover the dark faces of the Standard Model of cosmology. The possibility that Dark Energy and Dark Matter are manifestations of the inhomogeneous geometry of our Universe. On the history of cosmological model building and the general architecture of cosmological modes. Illustrations on the Large Scale Structure of the Universe. A new perspective on the classical static Einstein Cosmos. Global properties of World Models including their Topology. The Arrow of Time in a Universe with a Positive Cosmological Constant. Exploring the consequences of a fundamental Cosmological Constant for our Universe. Exploring why the current observed acceleration of the Universe may not be its final destiny. Demonstrating that nature forbids the existence of a pure Cosmological Constant. Our current understanding of the long term (in time scales that greatly exceed the current age of the Universe) future of the Universe. The long term fate and eventual destruction of the astrophysical objects that populate the universe -- including clusters, galaxies, stars, planets, and black holes. The material is presented in a layperson-friendly language followed by addition technical sections that explain the basic equations and principles. This feature is very attractive to readers who want to learn more about the theories involved beyond the basic description. "Multiversal JourneysTM is a trademark of Farzad Nekoogar and Multiversal Journeys, a 501 (c) (3) nonprofit organization."

Author: Carlos Martins
Publisher: Springer Science & Business Media
ISBN: 9401732728
Category : Science
Languages : en
Pages : 257

View

Book Description
The workshop on The Cosmology of Extra Dimensions and Varying Fundamental Constants, which was part of JENAM 2002, was held at the Physics Department of the University of Porto (FCUP) from the 3rd to the 5th of September 2002. It was regularly attended by about 110 participants, of which 65 were officially registered in the VFC workshop, while the others came from the rest of the JENAM workshops. There were also a few science correspondents from the national and international press. During the 3 days of the scientific programme, 8 Invited Reviews and 30 Oral Communications were presented. The speakers came from 11 different European countries, and also from Argentina, Australia, Canada, Japan and the U.S.A. There were also speakers from six Portuguese research institutions, and nine of the speak ers were Ph.D. students. The contributions are presented in these proceedings in chronological order. The workshop brought together string theorists, particle physicists, theoretical and observational cosmologists, relativists and observational astrophysicists. It was generally agreed that this inter-disciplinarity was the greatest strength of the work shop, since it provided people coming into this very recent topic from the various different backgrounds with an opportunity to understand each other's language and thereby gain a more solid understanding of the overall picture.

Author: Harald Fritzsch
Publisher: World Scientific
ISBN: 9814338362
Category : Science
Languages : en
Pages : 214

View

Book Description
The speed of light, the fine structure constant, and Newton's constant of gravity — these are just three among the many physical constants that define our picture of the world. Where do they come from? Are they constant in time and across space? In this book, physicist and author Harald Fritzsch invites the reader to explore the mystery of the fundamental constants of physics in the company of Isaac Newton, Albert Einstein, and a modern-day physicist. The conversation that the three scientists are imagined to have provides an entertaining introduction to the constants and covers topics ranging from atomic, nuclear, and particle physics to astrophysics and cosmology.

Author: Michael G. Schmidt
Publisher: World Scientific
ISBN: 9812383336
Category : Science
Languages : en
Pages : 540

View

Book Description
The SEWM2002 workshop, like the ones before, brought together theoretical physicists working on thermal field theory and, more generally, on (resummation) techniques for deriving effective actions based on QCD and the electroweak standard model of elementary particle physics, but describing nonstandard situations. The focus was on the temperature/chemical potential phase diagram of QCD, considered both analytically and with lattice gauge theory, equilibrium and nonequilibrium thermo field theory, and on heavy ion physics. Other related topics were ?small x physics? in QCD, electroweak baryogenesis, inflation, and dark energy in the early universe.

Author: Silvia Galli
Publisher:
ISBN:
Category :
Languages : en
Pages : 241

View

Book Description
The excellent agreement between the Standard Model of Cosmology and the recent measurements of the Cosmic Microwave Background (CMB) permits to constrain a wide range of physical processes. In particular, in this thesis we exploit the remarkable agreement between the theoretical description of the recombination process, occurring at z~1000, and the CMB data to severely constrain phenomena that affect the evolution of the thermal history of the universe. This contributes answering some important issues still unsolved in the standard model of cosmology. We first address the problem of the nature of dark matter. An extra energy injection due to dark matter annihilation during the epoch of recombination would affect the shape of the CMB power spectra. This allows to constrain dark matter properties using the CMB. The second question regards the validity of conventional physics to describe the Universe. New fundamental theories might predict the space-time variation of fundamental 'constants'. In this thesis we test the constancy of the gravitational constant and of the fine structure constant using the CMB. The third question concerns the characteristics (and in particular, the evolution) of dark energy. The information that can be extracted from the CMB is limited, making necessary the use of complementary probes that can break degeneracies between parameters. This is the case for the evolution of the dark energy equation of state with time, that the CMB can only weakly constrain. We thus show how the observation of clusters of galaxies combined with CMB can be a powerful tool to constrain dark energy.

Author: Giovanni Montani
Publisher: World Scientific
ISBN: 9814271004
Category : Science
Languages : en
Pages : 617

View

Book Description
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: Peter Coles
Publisher: Psychology Press
ISBN: 9780415923545
Category : Philosophy
Languages : en
Pages : 416

View

Book Description
We have entered the "Golden Age of Cosmology," where modern technology is allowing scientists to chart the cosmos to a depth and precision unimaginable until recent years. The amassing of this new data has had a profound impact on our understanding of the origin and evolution of the universe. The Routledge Critical Dictionary of the New Cosmology is designed to be your guide through this exciting period. The clear, concise essays by leading cosmologists provide introductions to various aspects of the subject, and allow new developments to be placed in context. The essays are cross-referenced to an alphabetical dictionary giving in-depth explanations of key words and concepts as well as biographical entries on the major figures in cosmology. This volume can be used to focus on a particular theme or to explore the big picture.

Author: John Barrow
Publisher: Vintage
ISBN: 0307555356
Category : Science
Languages : en
Pages : 370

View

Book Description
Reality as we know it is bound by a set of constants—numbers and values that dictate the strengths of forces like gravity, the speed of light, and the masses of elementary particles. In The Constants of Nature, Cambridge Professor and bestselling author John D.Barrow takes us on an exploration of these governing principles. Drawing on physicists such as Einstein and Planck, Barrow illustrates with stunning clarity our dependence on the steadfastness of these principles. But he also suggests that the basic forces may have been radically different during the universe’s infancy, and suggests that they may continue a deeply hidden evolution. Perhaps most tantalizingly, Barrow theorizes about the realities that might one day be found in a universe with different parameters than our own.

Author: Savely G. Karshenboim
Publisher: Springer Science & Business Media
ISBN: 9783540219675
Category : Science
Languages : en
Pages : 374

View

Book Description
The question of a possible temporal variation of the fundamental constants was raised by Paul Dirac in his "large number hypothesis" in 1937. Today it appears in the context of the search for a unified theory of the fundamental interactions. It touches both fundamental and applied physics, as the postulate of the unalterability of the constants is the foundation for modern metrology. The book presents reviews written by leading experts in the field. Focussing on the question of variations of the fundamental "constants" in time or space, the chapters cover the theoretical framework in which variations are expected and the search for variations of quantities like the fine-structure constant, the electron/proton mass ratio, g-factors of proton and neutron etc. in astrophysical and geophysical observations and in precision experiments with atomic clocks and frequency standards.