Loop Quantum Gravity For The Bewildered
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Loop Quantum Gravity For The Bewildered
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Author : Sundance Bilson-Thompson
language : en
Publisher: Springer Nature
Release Date :
Loop Quantum Gravity For The Bewildered written by Sundance Bilson-Thompson and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Lqg For The Bewildered
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Author : Deepak Vaid
language : en
Publisher: Springer
Release Date : 2016-10-07
Lqg For The Bewildered written by Deepak Vaid and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-07 with Science categories.
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.
Loop Quantum Gravity For Everyone
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Author : Rodolfo Gambini
language : en
Publisher: World Scientific
Release Date : 2020-01-08
Loop Quantum Gravity For Everyone written by Rodolfo Gambini and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-08 with Science categories.
'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.
Loop Quantum Gravity
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Author : Brian Wiley
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2017-06-27
Loop Quantum Gravity written by Brian Wiley and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-27 with categories.
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.
Quantum Space
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Author : Jim Baggott
language : en
Publisher: Oxford University Press, USA
Release Date : 2022-03
Quantum Space written by Jim Baggott and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03 with categories.
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.
Loop Quantum Gravity
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Author : Paul F. Kisak
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2016-10-09
Loop Quantum Gravity written by Paul F. Kisak and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-09 with categories.
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.
Loop Quantum Gravity
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Author : Abhay Ashtekar
language : en
Publisher:
Release Date : 2017
Loop Quantum Gravity written by Abhay Ashtekar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Quantum cosmology categories.
"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"--
Physics Of Quantum Gravity
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Author : Richard Burrows
language : en
Publisher:
Release Date : 2015-02-27
Physics Of Quantum Gravity written by Richard Burrows and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-27 with Physic categories.
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.
Quantum Gravity
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Author : Rodrigo Sobreiro
language : en
Publisher: BoD – Books on Demand
Release Date : 2012-02-15
Quantum Gravity written by Rodrigo Sobreiro and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-15 with Science categories.
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.
The Theories Of The Graviton Part Two
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Author : Aaron Bain
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-10-24
The Theories Of The Graviton Part Two written by Aaron Bain and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-24 with categories.
Gravitons are the quanta of gravity that, if proven to exist, would potentially connect quantum mechanics with gravitation. The second part of the Graviton Theory entity focuses on the quantum side of the graviton's mechanics and nature (which were first proposed in the classical framework in Part One). They will be explained in depth, as to how gravitons act as quantum particles, and how they can act as both strings in Sting Theory and as loops in Loop Quantum Gravity. This analysis is to propose how gravitons behave, not only in our set of four-dimensional spacetime, but also in higher dimensional sets of spacetime.