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Author : Sundance Bilson-Thompson
Publisher : Springer Nature
ISBN 13 : 3031434528
Total Pages : 210 pages
Book Rating : 4.0/5 (314 download)
Download or read book Loop Quantum Gravity for the Bewildered written by Sundance Bilson-Thompson and published by Springer Nature. This book was released on with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Deepak Vaid
Publisher : Springer
ISBN 13 : 3319431846
Total Pages : 138 pages
Book Rating : 4.3/5 (194 download)
Download or read book LQG for the Bewildered written by Deepak Vaid and published by Springer. This book was released on 2016-10-07 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This primer offers a concise introduction to Loop Quantum Gravity (LQG) - a theoretical framework for uniting Quantum Mechanics (QM) with General Relativity (GR). The emphasis is on the physical aspects of the framework and its historical development in terms of self-dual variables, still most suited for a first, pedagogical encounter with LQG. The text starts by reviewing GR and the very basics of Quantum Field Theory (QFT), and then explains in a concise and clear manner the steps leading from the Einstein-Hilbert action for gravity to the construction of the quantum states of geometry, known as spin-networks, and which provide the basis for the kinematical Hilbert space of quantum general relativity. Along the way the various associated concepts of tetrads, spin-connection and holonomies are introduced. Having thus provided a minimal introduction to the LQG framework, some applications to the problems of black hole entropy and of quantum cosmology are briefly surveyed. Last but not least, a list of the most common criticisms of LQG is presented, which are then tackled one by one in order to convince the reader of the physical viability of the theory. A set of appendices provides accessible introductions to several key notions such as the Peter-Weyl theorem, duality of differential forms and Regge calculus, among others. The presentation is aimed at graduate students and researchers who have some familiarity with the tools of QM and GR, but are intimidated by the technicalities required to browse through the existing LQG literature. This primer aims at making the formalism appear a little less bewildering to the uninitiated and helps lower the barrier for entry into the field.
Author : Rodolfo Gambini
Publisher : World Scientific
ISBN 13 : 9811211973
Total Pages : 103 pages
Book Rating : 4.8/5 (112 download)
Download or read book Loop Quantum Gravity For Everyone written by Rodolfo Gambini and published by World Scientific. This book was released on 2020-01-08 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'In this remarkably well-written text, the authors introduce readers gently to the conceptual bricks of LQG without using any mathematics (quite an achievement). The debate started with the discovery that the space-time geometry of general relativity can be written in terms of the electromagnetic field. This led to intersecting graphs called loops. Now known as spin networks, they are the foundations of LQG. This slender volume discusses applications of LQG to black holes and cosmology and introduces the notion of spin foam, acknowledging that as yet the theory, though elegant, has no experimental confirmation … This book offers a fascinating introduction to an esoteric realm otherwise accessible to only a fortunate few.Summing Up: Highly recommended. Upper-division undergraduates. Graduate students and faculty researchers.'CHOICEChoice Outstanding Academic Title for 2020Loop quantum gravity is one of the main contenders to unify Einstein's general theory of relativity and quantum mechanics, therefore providing a quantum theory of gravity. If these words do not mean much to you, do not worry, we will define them in simple terms.This book describes loop quantum gravity and its applications to cosmology, black holes and spin foams without using formulas. It is concise and has a light style that makes for easy reading yet covering many of the cutting-edge developments in the field. It also addresses some of the controversies that surround these topics as they are incomplete science.
Author : Brian Wiley
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781981180233
Total Pages : 186 pages
Book Rating : 4.1/5 (82 download)
Download or read book Loop Quantum Gravity written by Brian Wiley and published by Createspace Independent Publishing Platform. This book was released on 2017-06-27 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contributions include the latest developments that are not discussed in existing books, particularly recent advances in quantum dynamics both in the Hamiltonian and sum over histrories approaches; and applications to cosmology of the early universe and to the quantum aspects of black holes. It takes the reader from the basics to recent advances, thereby bridging an important gap. The aim is two-fold to provide a contemporary introduction to the entire field for students and post-docs, and to present an overview of the current status for more senior researchers.
Author : Jim Baggott
Publisher : Oxford University Press, USA
ISBN 13 : 9780198809128
Total Pages : 448 pages
Book Rating : 4.8/5 (91 download)
Download or read book Quantum Space written by Jim Baggott and published by Oxford University Press, USA. This book was released on 2022-03 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The greatest challenge for physics is to combine its two most successful theories: general relativity and quantum mechanics. The resulting quantum theory of gravity would explain the universe across all scales. Much has been said about the approach based on string theory. Here, Jim Baggott describes its powerful rival: Loop Quantum Gravity.
Author : Abhay Ashtekar
Publisher :
ISBN 13 : 9789813220003
Total Pages : 320 pages
Book Rating : 4.2/5 (2 download)
Download or read book Loop Quantum Gravity written by Abhay Ashtekar and published by . This book was released on 2017 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Over the last decade, several important advances have occurred, that include the continuum and classical limit of the non-perturbative theory on the conceptual side, and concrete ideas on confronting quantum gravity with observations in cosmology. This volume takes the reader from basics to recent advances, thereby bridging an important gap. It presents a snapshot of the state-of-the-art in loop quantum gravity from the perspective of young leading researchers. The goal is two-fold: to provide a contemporary introduction to the entire field for students and post-docs and, an overview of the current status for more senior researchers. These overviews present the latest developments that are not discussed in existing books, particularly the applications to the cosmology of the early universe and quantum aspects of black holes"--
Author : Paul F. Kisak
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781539446460
Total Pages : 288 pages
Book Rating : 4.4/5 (464 download)
Download or read book Loop Quantum Gravity written by Paul F. Kisak and published by Createspace Independent Publishing Platform. This book was released on 2016-10-09 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loop quantum gravity (LQG) had its origins with theories based on the quantum geometries of space-time. Theoretical physics has been working towards developing a theory of everything (TOE) for decades. The spirit of the effort appears to have a basis in fact as experimental evidence from The Large Hadron Collider and The Hubble Telescope continue to provide pieces of information that both confirm theories (Higgs Boson) and continue to raise new and confounding issues such as Dark Matter and Dark Energy. LQG is a remarkable attempt to incorporate the math of quantum mechanics and Einstein's theory of general relativity. A major focus is on developing the math of the geometric "granularity" or quantization of space. The fundamental concept behind LQG is that space is mathematically modeled as a very fine interconnected network of finite loops. These 'loops' form structures on the order of a Planck Length which is approximately 10 DEGREES DEGREES-35 meters. There are basically two variations being explored in LQG with one being canonical loop quantum gravity and a more recent variant known as covariant loop quantum gravity or 'spin-foam' theory. LQG is also being applied to the field of cosmology and is termed Loop Quantum Cosmology (LQC). This book is designed to be a reference and provide an overview of the topic and give the reader a structured knowledge to familiarize yourself with the topic at the most affordable price possible. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most current knowledge on the topic, based on the date of publication.
Author : Richard Burrows
Publisher :
ISBN 13 : 9781632383570
Total Pages : 0 pages
Book Rating : 4.3/5 (835 download)
Download or read book Physics of Quantum Gravity written by Richard Burrows and published by . This book was released on 2015-02-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides insight into major facets of the physics of quantum gravity. The application of quantum field theory for explaining gravity is one of the main problems in contemporary elementary Physics. It has been in existence for nearly a century, but a definite answer is yet to be determined. Loop quantum gravity and string theory have answered several answers associated with this problem, but they have brought with themselves a huge set of added questions. Apart from these two theories, several other alternative theories have also been developed over the decades. Renowned authors from across the globe have contributed in this book. The content provided in this book deals with gravity and its quantization through known and alternative methods in order to provide a better understanding on the quantum nature of gravity. Readers will find an extensive compilation of physical and mathematical concepts along with updated research regarding the challenging puzzle of quantum gravity in this book.
Author : Wen -. Xiang Chen
Publisher : Eliva Press
ISBN 13 : 9781636483733
Total Pages : 58 pages
Book Rating : 4.4/5 (837 download)
Download or read book The Relationship Between Cues from Loop Quantum Gravity and Superradiation written by Wen -. Xiang Chen and published by Eliva Press. This book was released on 2021-10-07 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loop quantum gravity theory, the English alias loop gravity, quantum geometry; the quantum gravity theory developed by Abbe Ashitika, Lee Smalling, Carlo Rowley, etc., is the same as string theory It is the most successful theory of quantizing gravity today.The theory of using the perturbation theory of quantum field theory to realize the quantization of the theory of gravity cannot be renormalized. If you start with general relativity while advocating that space-time has only four dimensions, you can turn general relativity into a theory similar to gauge field theory. The basic regular variable is the Ashitika-Barbero connection instead of the metric tensor, and then the connection is defined The translation operator and the flux variable are the basic variables to achieve quantization.This book points out that when some boundary conditions are preset, bosons can produce Bose condensation without an energy layer. Under Bose condensation, the incident wave may be condensed in various black holes in the theory of loop quantum gravity. At that time, potential barriers can be generated near the event horizon of various black holes, and we believe that those black holes will also produce superradiation phenomena (this article adopts the natural unit system). We assume that the simple theoretical model of loop quantum gravity, which can produce super-radiation phenomena that do not exist in traditional theory, provides experimental evidence of loop quantum gravity.
Author : Dean Rickles
Publisher : Oxford University Press
ISBN 13 : 0199269696
Total Pages : 283 pages
Book Rating : 4.1/5 (992 download)
Download or read book The Structural Foundations of Quantum Gravity written by Dean Rickles and published by Oxford University Press. This book was released on 2006-11-16 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is spacetime? General relativity and quantum field theory answer this question in different ways. This collection of essays looks at the problem of uniting these two fundamental theories of our world, focusing on the nature of space and time within this quantum framework.
Author : Rodrigo Sobreiro
Publisher : BoD – Books on Demand
ISBN 13 : 9535100890
Total Pages : 114 pages
Book Rating : 4.5/5 (351 download)
Download or read book Quantum Gravity written by Rodrigo Sobreiro and published by BoD – Books on Demand. This book was released on 2012-02-15 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unification between gravity and quantum field theory is one of the major problems in contemporary fundamental Physics. It exists for almost one century, but a final answer is yet to be found. Although string theory and loop quantum gravity have brought many answers to the quantum gravity problem, they also came with a large set of extra questions. In addition to these last two techniques, many other alternative theories have emerged along the decades. This book presents a series of selected chapters written by renowned authors. Each chapter treats gravity and its quantization through known and alternative techniques, aiming a deeper understanding on the quantum nature of gravity. Quantum Gravity is a book where the reader will find a fine collection of physical and mathematical concepts, an up to date research, about the challenging puzzle of quantum gravity.
Author : Jeff Murugan
Publisher :
ISBN 13 :
Total Pages : 437 pages
Book Rating : 4.:/5 (112 download)
Download or read book Foundations of Space and Time written by Jeff Murugan and published by . This book was released on 2014 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Freydoon Mansouri
Publisher : World Scientific
ISBN 13 : 9814553425
Total Pages : 394 pages
Book Rating : 4.8/5 (145 download)
Download or read book Topics On Quantum Gravity And Beyond: Essays In Honor Of Louis Witten On His Retirement written by Freydoon Mansouri and published by World Scientific. This book was released on 1993-05-31 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This festschrift was conceived in connection with the symposium 'Topics on Quantum Gravity and Beyond,' held in honor of Louis Witten. The majority of the essays deal with problems on the frontiers of quantum gravity and string theories. There are also articles on atomic, nuclear, and particle physics, to name a few.
Author : Warner Schneider
Publisher : Dorrance Publishing
ISBN 13 : 1480970239
Total Pages : 66 pages
Book Rating : 4.4/5 (89 download)
Download or read book Quantum Gravity written by Warner Schneider and published by Dorrance Publishing. This book was released on 2016-08-02 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum Gravity: A Study in Physics and Cosmology By Warner Schneider Albert Einstein determined that gravitation is the curvature of space in proximity to any celestial body of mass. If this is so, then how and why does it occur? And what is the relationship between matter and the fabric of space that allows for it? We can gain a more complete understanding of this force by identifying the various symmetries and field vectors that are replicated between the quantum level, the macrocosm of our universe, and the greater macrocosm lying beyond it. The dynamic underlying the expansion of space is revealed in this way, which goes a long way in explaining the origins of the universe and where it is ultimately headed.
Author : James Lindesay
Publisher : Cambridge University Press
ISBN 13 : 1107008409
Total Pages : 419 pages
Book Rating : 4.1/5 (7 download)
Download or read book Foundations of Quantum Gravity written by James Lindesay and published by Cambridge University Press. This book was released on 2013-05-16 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores how quantum coherence can be consistently incorporated into Einstein's theory of gravitation, for researchers in the foundations of physics.
Author : Bei-Lok B. Hu
Publisher : Cambridge University Press
ISBN 13 : 0521193575
Total Pages : 615 pages
Book Rating : 4.5/5 (211 download)
Download or read book Semiclassical and Stochastic Gravity written by Bei-Lok B. Hu and published by Cambridge University Press. This book was released on 2020-03-05 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of semi-classical gravity theory and stochastic gravity as theories of quantum gravity in curved space-time.
Author : Brandon Mitchell
Publisher :
ISBN 13 : 9781536107982
Total Pages : 0 pages
Book Rating : 4.1/5 (79 download)
Download or read book Quantum Gravity written by Brandon Mitchell and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides new research on quantum gravity. Chapter One reviews the semi-classical corrections to the metric of a spherically symmetric static black hole space-time. Chapter Two discusses quantum entanglement in connection to black holes and nanotechnology. Chapter Three provides a particle-like description of Planckian black holes. Chapter Four analyses quantum gravity corrections to gauge theories with a cut-off regularisation.
