Gravity In Relativistic Particle Theory
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Relativistic Theory Of Gravity
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Author : Anatoliĭ Alekseevich Logunov
language : en
Publisher:
Release Date : 1998
Relativistic Theory Of Gravity written by Anatoliĭ Alekseevich Logunov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
The relativistic theory of gravity presented in this work is constructed as a field theory of the gravitational field within the framework of special relativity theory. The starting point is the hypothesis that a universal characteristic of matter -- the energy-momentum tensor -- serves as the source of gravity. The gravitational field is considered to be a universal physical field with spins 2 and 0, owing to the action of which the effective Riemannian space arises. This permits finding a gauge group and unambiguously constructing the Lagrangian density of the gravitational field. The set of equations of this theory is generally covariant and form-invariant with respect to the Lorentz group. Here the introduction of the graviton mass into the theory is necessarily required. The graviton mass substantially influences the Universe evolution and alters the nature of the gravitational collapse. In the work a further development is presented of the ideas of H. Poincare, H. Minkowski, A. Einstein,D. Hilbert, N. Rosen, V.A. Fock, S. Gupta, W. Thirring and S. Weinberg in the theory of relativity and gravity.
Theory Of Gravitational Interactions
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Author : Maurizio Gasperini
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-01-26
Theory Of Gravitational Interactions written by Maurizio Gasperini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-26 with Science categories.
This reference textbook is an up-to-date and self-contained introduction to the theory of gravitational interactions. The first part of the book follows the traditional presentation of general relativity as a geometric theory of the macroscopic gravitational field. A second, advanced part then discusses the deep analogies (and differences) between a geometric theory of gravity and the gauge theories of the other fundamental interactions. This fills a gap which is present in the context of the traditional approach to general relativity, and which usually makes students puzzled about the role of gravity. The necessary notions of differential geometry are reduced to the minimum, leaving more room for those aspects of gravitational physics of current phenomenological and theoretical interest, such as the properties of gravitational waves, the gravitational interactions of spinors, and the supersymmetric generalization of the Einstein equations. Theory of Gravitational Interactions will be of particular value to undergraduate students pursuing a theoretical or astroparticle curriculum. It can also be used by those teaching related subjects, by PhD students and young researchers working in different scientific sectors but wishing to enlarge their spectrum of interests, and, in general, by all scholars interested in the modern aspects and problems of gravitational interaction.
Theory Of Inverse Gravity
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Author : Antonio Carlos Pinto
language : en
Publisher: Antonio Carlos Pinto
Release Date : 2025-06-14
Theory Of Inverse Gravity written by Antonio Carlos Pinto and has been published by Antonio Carlos Pinto this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-06-14 with Science categories.
The Theory of Inverse Gravity, proposed in this book by Antonio Carlos Pinto, challenges Einstein's paradigm of General Relativity (GR) by introducing a fifth fundamental force: a repulsive gravity that acts selectively on radiant energy, such as photons, plasma and polaritons, in opposition to the gravitational attraction of matter. This work presents a reassessment of the foundations of cosmology and quantum physics, proposing that the dual interaction between attraction and repulsion can explain observational phenomena neglected by GR, such as the rise of flames, the deceleration of light in supersolid states and the accelerated expansion of the universe. Formalized by the modified field equation ( G_{\mu \nu} = \frac{8 \pi G}{c^4} (T_{\mu \nu}^{\text{mat}} - \kappa T_{\mu \nu}^{\text{rad}}) ), the theory suggests that radiant energy curves spacetime in the opposite way to matter, with the parameter ( \kappa ) quantifying this repulsion. The main goal is to propose an alternative model for the origin of the universe, the Primordial Repulsive Explosion (PRE), which eliminates the Big Bang singularity and attributes the initial expansion to inverse gravity, potentially eliminating the need for dark energy (Chapter 35). The theory also explores the manipulation of the speed of light in material media, as demonstrated by experiments by Lene Hau (1999) and TU Darmstadt (2013), suggesting that gravitational repulsion stabilizes quantum states such as supersolid light (Chapter 35-B). In addition, it analyzes the confinement of plasma in the EAST reactor, China's "Artificial Sun", proposing tests with LIDAR to detect angular deviations consistent with theory (Chapter 32). Inspired by controversial experiments by Eugene Podkletnov (2023) and ideas by Roger Penrose (2020) and Dragan Hajdukovic (2011), the work raises profound questions: does antimatter exhibit suppress antigravity? Does dark matter arise from primordial white holes? Is dark energy an illusion of inverse gravity? Methodologically, the theory proposes testable experiments, including measurements at EAST, analyzes of the cosmic microwave background (CMB) by the Simons Observatory (2023), and studies of polaritons, aiming to validate gravitational repulsion. The expected results include a reinterpretation of cosmology, unifying quantum physics and gravitation, and challenging the standard model. Its relevance lies in offering a theoretical framework that encourages the scientific community to explore gaps in GR, such as the singularity and the nature of dark energy, contributing to a revolution in theoretical physics. This work, completed on July 6, 2025, is a manifesto for nonconformists who seek answers beyond the current limits of knowledge.
Metric Theories Of Gravity
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Author : Alexander N. Petrov
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2017-04-24
Metric Theories Of Gravity written by Alexander N. Petrov and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-24 with Science categories.
By focusing on the mostly used variational methods, this monograph aspires to give a unified description and comparison of various ways of constructing conserved quantities for perturbations and to study symmetries in general relativity and modified theories of gravity. The main emphasis lies on the field-theoretical covariant formulation of perturbations, the canonical Noether approach and the Belinfante procedure of symmetrisation. The general formalism is applied to build the gauge-invariant cosmological perturbation theory, conserved currents and superpotentials to describe physically important solutions of gravity theories. Meticulous attention is given to the construction of conserved quantities in asymptotically-flat spacetimes as well as in asymptotically constant curvature spacetimes such as the Anti-de Sitter space. Significant part of the book can be used in graduate courses on conservation laws in general relativity. THE SERIES: DE GRUYTER STUDIES IN MATHEMATICAL PHYSICS The series is devoted to the publication of monographs and high-level texts in mathematical physics. They cover topics and methods in fields of current interest, with an emphasis on didactical presentation. The series will enable readers to understand, apply, and develop further, with sufficient rigor, mathematical methods to given problems in physics. The works in this series are aimed at advanced students and researchers in mathematical and theoretical physics. They can also serve as secondary reading for lectures and seminars at advanced levels.
Gravity Particles And Astrophysics
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Author : P. Wesson
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Gravity Particles And Astrophysics written by P. Wesson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
This book deals with the relationship between gravitation and elementary particle physics, and the implications of these subjects for astrophysics. There has, in recent years, been renewed interest in theories that connect up gravitation and particle physics, and in the astrophysical consequences of such theories. Some of these accounts involve a time-variation of the Newtonian gravitational parameter, G. In this respect, the present book may be regarded as a companion to my Cosmology and Geophysics (Hilger, Bristol, 1978). There is some overlap as regards the discussion of G-variability, but the emphasis in the present book is on astrophysics while the emphasis in the other one is on geophysics. The subject is a very broad one indeed, and in giving a review of it I have adopted a somewhat unorthodox way of presenting the material involved. The main reason for this is that a review of such a wide subject should aim at two levels: the level of the person who is interested in it, and the level of the person who is professionally engaged in research into it. To achieve such a two-level coverage, I have split the text up into two parts. The first part (Chapters 1-7) represents a relatively non-technical overview of the subject, while the second part (Chapters 8-11) represents a technical examination of the most important aspects of non-Einsteinian gravitational theory and its relation to astrophysics.
Gravity In Relativistic Particle Theory A Physical Foundation For The Life Sciences
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Author : Harold Hamilton Ph.D.
language : en
Publisher: Lulu.com
Release Date : 2013-04-08
Gravity In Relativistic Particle Theory A Physical Foundation For The Life Sciences written by Harold Hamilton Ph.D. and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-08 with Science categories.
This book focuses on the need for and development of a rigorous Nonequilibrium Thermodynamic Theory, as a foundation on which to construct a relativistic particle theory that in turn serves as a self-consistent basis for our reasoning in the quantum, cosmological and life sciences, at the farthest extremes of organized complexity ? and the farthest removes from equilibrium. In Part I, Dr. Hamilton develops general principles and laws, extending those of Classical Thermodynamics, which govern the origin and evolution of systems far from equilibrium. And he shows that these principles act collectively with Heisenberg?s indeterminacy principle, as a Nonequilibrium Thermodynamic Imperative (NTI), a creative driving force in the expansion and evolution of the Universe. In Part II, he proposes fundamental assumptions, alternatives to those in the Standard Model, that lead, seamlessly and self-consistently, to the origin and evolution of the quantum Universe and its transition to the scalar expansion of the Cosmos, in which the force of gravity plays a central role. On this foundation, Part III develops a rational quantum theory in which Gravitational and Symmetry Bound Photons (GSBP) constitute the most fundamental particles in the Universe as dimensional composite fermions (quarks, electrons and positrinos) and bosons, and enabling a GSBP-Schroedinger enhanced description of the dynamics of atomic and molecular systems. And in Part IV, Dr. Hamilton develops a physical, molecular theory of the origin and evolution of life on the early Earth which accounts in natural geophysical terms for the critically important homochirality of all the amino acids in present-day living cells. The Nonequilibrium Thermodynamic Imperative drives and undergirds all creative action, at all levels, from quantum to cosmological, in the expanding Universe, including the Darwinian Natural Selection of species on Earth in which the NTI plays a fundamental physical role.
Space Time And Spacetime
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Author : Vesselin Petkov
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-02
Space Time And Spacetime written by Vesselin Petkov and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-02 with Science categories.
Dedicated to the centennial anniversary of Minkowski's discovery of spacetime, this volume contains papers, most presented at the Third International Conference on the Nature and Ontology of Spacetime, that address some of the deepest questions in physics.
Gravity
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Author : Eric Poisson
language : en
Publisher: Cambridge University Press
Release Date : 2014-05-29
Gravity written by Eric Poisson and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-29 with Science categories.
A unique graduate textbook that develops powerful approximation methods and their applications to real-life astrophysical systems.
Structural Aspects Of Quantum Field Theory And Noncommutative Geometry Second Edition In 2 Volumes
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Author : Gerhard Grensing
language : en
Publisher: World Scientific
Release Date : 2021-07-15
Structural Aspects Of Quantum Field Theory And Noncommutative Geometry Second Edition In 2 Volumes written by Gerhard Grensing and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-15 with Science categories.
The book is devoted to the subject of quantum field theory. It is divided into two volumes. The first volume can serve as a textbook on main techniques and results of quantum field theory, while the second treats more recent developments, in particular the subject of quantum groups and noncommutative geometry, and their interrelation.The second edition is extended by additional material, mostly concerning the impact of noncommutative geometry on theories beyond the standard model of particle physics, especially the possible role of torsion in the context of the dark matter problem. Furthermore, the text includes a discussion of the Randall-Sundrum model and the Seiberg-Witten equations.
Theoretical And Observational Consistency Of Massive Gravity
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Author : Lavinia Heisenberg
language : en
Publisher: Springer
Release Date : 2015-06-12
Theoretical And Observational Consistency Of Massive Gravity written by Lavinia Heisenberg and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-12 with Science categories.
This work is a detailed study of both the theoretical and phenomenological consequences of a massive graviton, within the ghost-free theory of massive gravity, the de Rham-Gabadadze-Tolley (dRGT) theory. Its aim is to test the physical viability of the theory. It begins by putting constraints on the parameters of the theory in the decoupling limit based on purely theoretical grounds, like classical stability in the cosmological evolution of self-accelerating and degravitating solutions. The author then constructs a proxy theory to massive gravity from the decoupling limit resulting in non-minimally coupled scalar-tensor interactions as an example of a subclass of Horndeski theories. Lastly, she addresses the natural question of whether the parameters introduced in the dRGT theory are subject to strong renormalization by quantum loops and shows how the non-renormalization theorem protects the graviton mass from quantum corrections. Beyond the decoupling limit the quantum corrections are found to be proportional to the graviton mass, proving its technical naturalness.