Scalar Fields In Numerical General Relativity

Author : Katy Clough
Publisher : Springer
ISBN 13 : 3319926721
Total Pages : 197 pages
Book Rating : 4.28/5 ( download)

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Download or read book Scalar Fields in Numerical General Relativity written by Katy Clough and published by Springer. This book was released on 2018-06-16 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the use of numerical relativity (NR) methods to solve cosmological problems, and describes one of the first uses of NR to study inflationary physics. NR consists in the solution of Einstein’s Equation of general relativity, which governs the evolution of matter and energy on cosmological scales, and in systems where there are strong gravitational effects, such as around black holes. To date, NR has mainly been used for simulating binary black hole and neutron star mergers like those detected recently by LIGO. Its use as a tool in fundamental problems of gravity and cosmology is novel, but rapidly gaining interest. In this thesis, the author investigates the initial condition problem in early universe cosmology – whether an inflationary expansion period could have “got going” from initially inhomogeneous conditions – and identifies criteria for predicting the robustness of particular models. State-of-the-art numerical relativity tools are developed in order to address this question, which are now publicly available.

Author : Thomas W. Baumgarte
Publisher : Cambridge University Press
ISBN 13 : 1108945171
Total Pages : 235 pages
Book Rating : 4.72/5 ( download)

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Download or read book Numerical Relativity: Starting from Scratch written by Thomas W. Baumgarte and published by Cambridge University Press. This book was released on 2021-04-08 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical relativity has emerged as the key tool to model gravitational waves - recently detected for the first time - that are emitted when black holes or neutron stars collide. This book provides a pedagogical, accessible, and concise introduction to the subject. Relying heavily on analogies with Newtonian gravity, scalar fields and electromagnetic fields, it introduces key concepts of numerical relativity in a context familiar to readers without prior expertise in general relativity. Readers can explore these concepts by working through numerous exercises, and can see them 'in action' by experimenting with the accompanying Python sample codes, and so develop familiarity with many techniques commonly employed by publicly available numerical relativity codes. This is an attractive, student-friendly resource for short courses on numerical relativity, as well as providing supplementary reading for courses on general relativity and computational physics.

Author : Charles R. Evans
Publisher : Cambridge University Press
ISBN 13 : 0521366666
Total Pages : 451 pages
Book Rating : 4.63/5 ( download)

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Download or read book Frontiers in Numerical Relativity written by Charles R. Evans and published by Cambridge University Press. This book was released on 1989-04-13 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1989 text will be of value to those who wish to understand developments in computer studies of general relativity at the time of publication.

Author : Alfredo Macías
Publisher : Springer
ISBN 13 : 9781475781991
Total Pages : 328 pages
Book Rating : 4.97/5 ( download)

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Download or read book Exact Solutions and Scalar Fields in Gravity written by Alfredo Macías and published by Springer. This book was released on 2013-04-18 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Miguel Alcubierre
Publisher : Oxford University Press
ISBN 13 : 0199205671
Total Pages : 459 pages
Book Rating : 4.77/5 ( download)

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Download or read book Introduction to 3+1 Numerical Relativity written by Miguel Alcubierre and published by Oxford University Press. This book was released on 2008-04-10 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a self-contained introduction to the field of numerical relativity. Starting from basic general relativity, it introduces all the concepts and tools necessary for the fully relativistic simulation of astrophysical systems with strong and dynamical gravitational fields.

Author : Thomas W. Baumgarte
Publisher : Cambridge University Press
ISBN 13 : 1139643177
Total Pages : 717 pages
Book Rating : 4.77/5 ( download)

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Download or read book Numerical Relativity written by Thomas W. Baumgarte and published by Cambridge University Press. This book was released on 2010-06-24 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at students and researchers entering the field, this pedagogical introduction to numerical relativity will also interest scientists seeking a broad survey of its challenges and achievements. Assuming only a basic knowledge of classical general relativity, the book develops the mathematical formalism from first principles, and then highlights some of the pioneering simulations involving black holes and neutron stars, gravitational collapse and gravitational waves. The book contains 300 exercises to help readers master new material as it is presented. Numerous illustrations, many in color, assist in visualizing new geometric concepts and highlighting the results of computer simulations. Summary boxes encapsulate some of the most important results for quick reference. Applications covered include calculations of coalescing binary black holes and binary neutron stars, rotating stars, colliding star clusters, gravitational and magnetorotational collapse, critical phenomena, the generation of gravitational waves, and other topics of current physical and astrophysical significance.

Author : Sergio Luigi Cacciatori
Publisher : Springer Nature
ISBN 13 : 3031218450
Total Pages : 261 pages
Book Rating : 4.53/5 ( download)

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Download or read book Einstein Equations: Local Energy, Self-Force, and Fields in General Relativity written by Sergio Luigi Cacciatori and published by Springer Nature. This book was released on 2023-03-15 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume guides early-career researchers through recent breakthroughs in mathematics and physics as related to general relativity. Chapters are based on courses and lectures given at the July 2019 Domoschool, International Alpine School in Mathematics and Physics, held in Domodossola, Italy, which was titled “Einstein Equations: Physical and Mathematical Aspects of General Relativity”. Structured in two parts, the first features four courses from prominent experts on topics such as local energy in general relativity, geometry and analysis in black hole spacetimes, and antimatter gravity. The second part features a variety of papers based on talks given at the summer school, including topics like: Quantum ergosphere General relativistic Poynting-Robertson effect modelling Numerical relativity Length-contraction in curved spacetime Classicality from an inhomogeneous universe Einstein Equations: Local Energy, Self-Force, and Fields in General Relativity will be a valuable resource for students and researchers in mathematics and physicists interested in exploring how their disciplines connect to general relativity.

Author : Carles Bona
Publisher : Springer
ISBN 13 : 3642011640
Total Pages : 226 pages
Book Rating : 4.41/5 ( download)

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Download or read book Elements of Numerical Relativity and Relativistic Hydrodynamics written by Carles Bona and published by Springer. This book was released on 2009-07-14 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many large-scale projects for detecting gravitational radiation are currently being developed, all with the aim of opening a new window onto the observable Universe. As a result, numerical relativity has recently become a major field of research, and Elements of Numerical Relativity and Relativistic Hydrodynamics is a valuable primer for both graduate students and non-specialist researchers wishing to enter the field. A revised and significantly enlarged edition of LNP 673 Elements of Numerical Relativity, this book starts with the most basic insights and aspects of numerical relativity before it develops coherent guidelines for the reliable and convenient selection of each of the following key aspects: evolution formalism; gauge, initial, and boundary conditions; and various numerical algorithms. And in addition to many revisions, it includes new, convenient damping terms for numerical implementations, a presentation of the recently-developed harmonic formalism, and an extensive, new chapter on matter space-times, containing a thorough introduction to relativistic hydrodynamics. While proper reference is given to advanced applications requiring large computational resources, most tests and applications in this book can be performed on a standard PC.

Author : M. A. H. MacCallum
Publisher : CUP Archive
ISBN 13 : 9780521332965
Total Pages : 440 pages
Book Rating : 4.66/5 ( download)

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Download or read book General Relativity and Gravitation written by M. A. H. MacCallum and published by CUP Archive. This book was released on 1987-09-24 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Ray d'Inverno
Publisher : Cambridge University Press
ISBN 13 : 0521439760
Total Pages : 402 pages
Book Rating : 4.63/5 ( download)

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Download or read book Approaches to Numerical Relativity written by Ray d'Inverno and published by Cambridge University Press. This book was released on 1992-12-10 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributions by leading workers in the field given at an international workshop on Numerical Relativity held in Southampton in December 1991.