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An Introduction to Gravity Modification

2012 Science
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Release : 2012
Genre : Science
Kind : eBook
Book Rating : 894/5 ( reviews)

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Book Synopsis An Introduction to Gravity Modification by : Benjamin T. Solomon

Download or read book An Introduction to Gravity Modification written by Benjamin T. Solomon. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Gravity Modification, Second Edition is the result of a 12-year (1999-2011) study into the theoretical and technological feasibility of gravity modification, that presents the new physics of forces by replacing relativistic, quantum and string theories with process models. Gravity, electromagnetism and mechanical forces are unified by Ni fields, and obey a common equation g = (tau)c DEGREES2. Gravity modification is defined as the modification of the strength and direction of the gravitational acceleration without the use of mass as the primary source of this modification, in local space time. It consists of field modulation and field vectoring. Field modulation is the ability to attenuate or amplify a force field. Field vectoring is the ability to change the direction of this force field . This book reaches out to a wider audience, and not just to the theoretical physicist; to engineers and technologist who have the funding to experiment; just as Arno Penzias and Robert Woodrow Wilson experimented with the Holmdel Horn Antenna and discovered the microwave background radiation. The mathematics is easier than that taught in theoretical physics and therefore accessible to a wider audience such as these engineers and technolog

Introduction to Modified Gravity

2020-07-27 Science
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Release : 2020-07-27
Genre : Science
Kind : eBook
Book Rating : 626/5 ( reviews)

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Book Synopsis Introduction to Modified Gravity by : Albert Petrov

Download or read book Introduction to Modified Gravity written by Albert Petrov. This book was released on 2020-07-27. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews various modified gravity models, including those with modifications in the pure gravitational sector; those involving extra fields, that is, scalar-tensor and vector-tensor gravity theories; gravity models with Lorentz symmetry breaking; and nonlocal gravity models. The authors discuss both classical and quantum aspects of these theories. The book is unique in bringing together all the current alternatives to Einstein gravity in one source and serves as an excellent starting point for graduate students and other newcomers seeking an overview.

Modifications of Einstein's Theory of Gravity at Large Distances

2014-11-04 Science
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Release : 2014-11-04
Genre : Science
Kind : eBook
Book Rating : 70X/5 ( reviews)

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Book Synopsis Modifications of Einstein's Theory of Gravity at Large Distances by : Eleftherios Papantonopoulos

Download or read book Modifications of Einstein's Theory of Gravity at Large Distances written by Eleftherios Papantonopoulos. This book was released on 2014-11-04. Available in PDF, EPUB and Kindle. Book excerpt: In the last few years modified gravity theories have been proposed as extensions of Einstein's theory of gravity. Their main motivation is to explain the latest cosmological and astrophysical data on dark energy and dark matter. The study of general relativity at small scales has already produced important results (cf e.g. LNP 863 Quantum Gravity and Quantum Cosmology) while its study at large scales is challenging because recent and upcoming observational results will provide important information on the validity of these modified theories. In this volume, various aspects of modified gravity at large scales will be discussed: high-curvature gravity theories; general scalar-tensor theories; Galileon theories and their cosmological applications; F(R) gravity theories; massive, new massive and topologically massive gravity; Chern-Simons modifications of general relativity (including holographic variants) and higher-spin gravity theories, to name but a few of the most important recent developments. Edited and authored by leading researchers in the field and cast into the form of a multi-author textbook at postgraduate level, this volume will be of benefit to all postgraduate students and newcomers from neighboring disciplines wishing to find a comprehensive guide for their future research.

Generalized Perturbations in Modified Gravity and Dark Energy

2013-09-20 Science
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Release : 2013-09-20
Genre : Science
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Book Rating : 10X/5 ( reviews)

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Book Synopsis Generalized Perturbations in Modified Gravity and Dark Energy by : Jonathan Pearson

Download or read book Generalized Perturbations in Modified Gravity and Dark Energy written by Jonathan Pearson. This book was released on 2013-09-20. Available in PDF, EPUB and Kindle. Book excerpt: When predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity, each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.

Gravity-superconductors Interactions

2012 Science
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Release : 2012
Genre : Science
Kind : eBook
Book Rating : 997/5 ( reviews)

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Book Synopsis Gravity-superconductors Interactions by : Giovanni Modanese

Download or read book Gravity-superconductors Interactions written by Giovanni Modanese. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: "Recent developments in gravity-superconductivity interactions have been summarized by several researchers. If gravitation has to be eventually reconciled with quantum mechanics, the macroscopic quantum character of superconductors might actually matter. T"

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