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Author : Mikkel N. Christiansen,Tobias K. Rasmussen
Publisher : Nova Science Pub Incorporated
Page : 548 pages
File Size : 44,7 Mb
Release : 2008
Category : Science
ISBN : 1604563664
This book presents recent research from around the globe in gravitational physics and the theory of space-time.
Author : Vincent R. Frignanni
Publisher : Unknown
Page : 0 pages
File Size : 48,8 Mb
Release : 2012
Category : Quantum gravity
ISBN : 161122957X
Classical and quantum gravity covers all aspects of gravitational physics and the theory of spacetime. This new book presents topical research in the study of classical and quantum gravity, including the weak field limit of fourth order gravity; the problem of time in quantum gravity; quantum correction and entropy spectrum in different gravity; quantum instability for charged particles on charged Nariai Black Holes and the equivalence of the generalised tetra formalism with the theory of general relativity.
Author : Carlo Rovelli
Publisher : Cambridge University Press
Page : 516 pages
File Size : 52,9 Mb
Release : 2007-11-29
Category : Science
ISBN : 9781139456159
Quantum gravity is perhaps the most important open problem in fundamental physics. It is the problem of merging quantum mechanics and general relativity, the two great conceptual revolutions in the physics of the twentieth century. The loop and spinfoam approach, presented in this 2004 book, is one of the leading research programs in the field. The first part of the book discusses the reformulation of the basis of classical and quantum Hamiltonian physics required by general relativity. The second part covers the basic technical research directions. Appendices include a detailed history of the subject of quantum gravity, hard-to-find mathematical material, and a discussion of some philosophical issues raised by the subject. This fascinating text is ideal for graduate students entering the field, as well as researchers already working in quantum gravity. It will also appeal to philosophers and other scholars interested in the nature of space and time.
Author : David C. Moore
Publisher : Nova Publishers
Page : 282 pages
File Size : 48,8 Mb
Release : 2006
Category : Science
ISBN : 1594546703
Quantum gravity is the field of theoretical physics attempting to unify the theory of quantum mechanics, which describes three of the fundamental forces of nature, with general relativity, the theory of the fourth fundamental force: gravity. The ultimate goal is a unified framework for all fundamental forces -- a theory of everything. This book examines state-of-art research in this field.
Author : Sabine Hossenfelder
Publisher : Springer
Page : 120 pages
File Size : 54,9 Mb
Release : 2017-11-15
Category : Science
ISBN : 9783319645377
This book summarizes recent developments in the research area of quantum gravity phenomenology. A series of short and nontechnical essays lays out the prospects of various experimental possibilities and their current status. Finding observational evidence for the quantization of space-time was long thought impossible. In the last decade however, new experimental design and technological advances have changed the research landscape and opened new perspectives on quantum gravity. Formerly dominated by purely theoretical constructions, quantum gravity now has a lively phenomenology to offer. From high precision measurements using macroscopic quantum oscillators to new analysis methods of the cosmic microwave background, no stone is being left unturned in the experimental search for quantum gravity. This book sheds new light on the connection of astroparticle physics with the quantum gravity problem. Gravitational waves and their detection are covered. It illustrates findings from the interconnection between general relativity, black holes and Planck stars. Finally, the return on investment in quantum-gravitation research is illuminated. The book is intended for graduate students and researchers entering the field.
Author : Sumanta Chakraborty
Publisher : Springer
Page : 263 pages
File Size : 46,7 Mb
Release : 2017-08-01
Category : Science
ISBN : 9783319637334
This thesis explores the connection between gravity and thermodynamics and provides a unification scheme that opens up new directions of exploration. Further elaborating on the Hawking effect and the possibility of singularity avoidance, the author not only discusses the information loss paradox at a broader level but also provides a possible solution to it. As the final frontier, it describes some novel effects arising from the microscopic structure of spacetime. Taken as a whole, the thesis addresses three major research areas in gravitational physics: it starts with classical gravity, proceeds to the black hole information loss paradox, and closes with Planck scale physics. The thesis is written in a lucid and pedagogical style, with an introduction accessible to researchers from other branches of physics and a d iscussion presenting open questions and future directions, which will benefit and hopefully inspire next-generation researchers.
Author : Gianluca Calcagni
Publisher : Springer
Page : 843 pages
File Size : 51,5 Mb
Release : 2017-01-06
Category : Science
ISBN : 9783319411279
This comprehensive textbook is devoted to classical and quantum cosmology, with particular emphasis on modern approaches to quantum gravity and string theory and on their observational imprint. It covers major challenges in theoretical physics such as the big bang and the cosmological constant problem. An extensive review of standard cosmology, the cosmic microwave background, inflation and dark energy sets the scene for the phenomenological application of all the main quantum-gravity and string-theory models of cosmology. Born of the author's teaching experience and commitment to bridging the gap between cosmologists and theoreticians working beyond the established laws of particle physics and general relativity, this is a unique text where quantum-gravity approaches and string theory are treated on an equal footing. As well as introducing cosmology to undergraduate and graduate students with its pedagogical presentation and the help of 45 solved exercises, this book, which includes an ambitious bibliography of about 3500 items, will serve as a valuable reference for lecturers and researchers.
Author : Albert Reimer
Publisher : Nova Publishers
Page : 376 pages
File Size : 55,5 Mb
Release : 2006
Category : Science
ISBN : 1594543240
Quantum Gravity Research Trends
Author : Carlo Rovelli,Francesca Vidotto
Publisher : Cambridge University Press
Page : 267 pages
File Size : 41,6 Mb
Release : 2015
Category : Science
ISBN : 9781107069626
A comprehensible introduction to the most fascinating research in theoretical physics: advanced quantum gravity. Ideal for researchers and graduate students.
Author : Martin Bojowald
Publisher : John Wiley & Sons
Page : 0 pages
File Size : 45,9 Mb
Release : 2012-12-26
Category : Science
ISBN : 352741018X
Written by a well-known author in the field, this book presents a modern understanding of the universe based on relativity, quantum physics and their elusive combination. It introduces the crucial theoretical ingredients in an accessible way, starting from the physics of Newton and developing subsequent theories all the way to the modern enigma of quantum gravity. The intermediate level presentation assumes only a general knowledge of math and physics, adopting a "two-level" approach: equations are retained throughout the chapters but set apart from the main text in boxes to allow for lay readers to understand the book. For scientists, researchers, students and lecturers in cosmology, astronomy, gravitation, quantum and theoretical physics; as well as mathematicians, students, lecturers, academics and non-experts in related fields with an interest in the subject.
Author : Daniele Oriti
Publisher : Cambridge University Press
Page : 605 pages
File Size : 52,6 Mb
Release : 2009-03-05
Category : Science
ISBN : 9780521860451
Containing contributions from leading researchers in this field, this book provides a complete overview of this field from the frontiers of theoretical physics research for graduate students and researchers. It introduces the most current approaches to this problem, and reviews their main achievements.
Author : Gianluca Calcagni,Lefteris Papantonopoulos,George Siopsis,Nikos Tsamis
Publisher : Springer
Page : 402 pages
File Size : 46,8 Mb
Release : 2012-10-31
Category : Science
ISBN : 9783642330360
Quantum gravity has developed into a fast-growing subject in physics and it is expected that probing the high-energy and high-curvature regimes of gravitating systems will shed some light on how to eventually achieve an ultraviolet complete quantum theory of gravity. Such a theory would provide the much needed information about fundamental problems of classical gravity, such as the initial big-bang singularity, the cosmological constant problem, Planck scale physics and the early-time inflationary evolution of our Universe. While in the first part of this book concepts of quantum gravity are introduced and approached from different angles, the second part discusses these theories in connection with cosmological models and observations, thereby exploring which types of signatures of modern and mathematically rigorous frameworks can be detected by experiments. The third and final part briefly reviews the observational status of dark matter and dark energy, and introduces alternative cosmological models. 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.
Author : Nick Huggett,Keizo Matsubara,Christian Wüthrich
Publisher : Cambridge University Press
Page : 371 pages
File Size : 45,6 Mb
Release : 2020-05-14
Category : Philosophy
ISBN : 9781108477024
A collection of essays discussing the philosophy and foundations of quantum gravity. Written by leading philosophers and physicists in the field, chapters cover the important conceptual questions in the search for a quantum theory of gravity, and the current state of understanding among philosophers and physicists.
Author : Edward Anderson
Publisher : Springer
Page : 920 pages
File Size : 45,6 Mb
Release : 2017-09-18
Category : Science
ISBN : 9783319588483
This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond.
Author : Brandon Mitchell
Publisher : Unknown
Page : 0 pages
File Size : 44,5 Mb
Release : 2017
Category : Quantum gravity
ISBN : 1536107980
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.
