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Loop Quantum Gravity for the Bewildered: The Self-Dual Approach Revisited

Posted By: AvaxGenius
Loop Quantum Gravity for the Bewildered: The Self-Dual Approach Revisited

Loop Quantum Gravity for the Bewildered: The Self-Dual Approach Revisited by Sundance Bilson-Thompson
English | PDF EPUB (True) | 2024 | 210 Pages | ISBN : 303143451X | 16 MB

This second edition offers a comprehensive introduction to loop quantum gravity (LQG) in self-dual variables, including the necessary prerequisites. Additionally, it delves into various significant research areas that have emerged in recent years. New content (including an entirely new chapter dedicated to dynamics of quantum spacetime) explores the description of spin networks and spin-foams, their historical development as well as connections to tensor networks, BF theory, and emerging approaches including the spinorial representation of LQG, SU(2) coherent states, and group field theory. Furthermore, the book provides expanded appendices covering essential tools and concepts, such as the connection between information theory and entropy, and overviews of group theory and differential geometry. All topics are presented from a non-expert perspective, ensuring self-containment and accessibility. The primary aim of this second edition remains helping researchers, bewildered by the vast array of topics within this rapidly growing field of quantum gravity, to gain a fundamental understanding of the current developments.

Reality Is Not What It Seems: The Journey to Quantum Gravity

Posted By: hill0
Reality Is Not What It Seems: The Journey to Quantum Gravity

Reality Is Not What It Seems: The Journey to Quantum Gravity
English | 2017 | ISBN: 0241257964 | 212 Pages | PDF | 7 MB

Background Independence in Classical and Quantum Gravity

Posted By: hill0
Background Independence in Classical and Quantum Gravity

Background Independence in Classical and Quantum Gravity
English | 2023 | ISBN: 0192889117 | 159 Pages | PDF (True) | 1.2 MB

Basic Relativity: An Introductory Essay

Posted By: AvaxGenius
Basic Relativity: An Introductory Essay

Basic Relativity: An Introductory Essay by Péter Hraskó
English | PDF | 2011 | 106 Pages | ISBN : 364217809X | 1.5 MB

This Brief presents a new way of introducing relativity theory, in which perplexing relativistic effects such as time dilation and Lorentz contraction are explained prior to the discussion of Lorentz-transformation. The notion of relativistic mass is shown to contradict the spirit of relativity theory and the true significance of the mass-energy relation is contrasted with the popular view of it. The author discusses the twin paradox from the point of view of both siblings. Last but not least, the fundamentals of general relativity are described, including the recent Gravity Probe B experiment.

Gravitational Waves from a Quantum Field Theory Perspective

Posted By: AvaxGenius
Gravitational Waves from a Quantum Field Theory Perspective

Gravitational Waves from a Quantum Field Theory Perspective by Subhendra Mohanty
English | PDF EPUB (True) | 2023 | 275 Pages | ISBN : 3031237692 | 26 MB

This book treats the subject of gravitational waves (GWs) production in binary stars or black-holes and in the early universe, using tools of quantum field theory which are familiar to graduate students and researchers in particle physics. A special focus is given to the generation of templates of gravitational wave signals from Feynman diagram calculations of transition amplitudes, which interests active researchers in GWs. The book presents field theory concepts, like supersymmetry realized in spinning binaries and soft-graviton theorems, that can have practical applications in novel GW signals, like the memory effect. The book also aims at specialists in both GWs and particle physics addressing cosmological models of phase transition and inflation that can be tested in observations at terrestrial and space based interferometers, pulsar timing arrays, and the cosmic microwave anisotropy observations.

Deep Space Flight and Communications: Exploiting the Sun as a Gravitational Lens

Posted By: AvaxGenius
Deep Space Flight and Communications: Exploiting the Sun as a Gravitational Lens

Deep Space Flight and Communications: Exploiting the Sun as a Gravitational Lens by Claudio Maccone
English | PDF (True) | 2009 | 416 Pages | ISBN : 3540729429 | 4.88 MB

The majority of books dealing with prospects for interstellar flight tackle the problem of the propulsion systems that will be needed to send a craft on an interstellar trajectory. The proposed book looks at two other, equally important aspects of such space missions, and each forms half of this two part book.

Relativity and Engineering

Posted By: AvaxGenius
Relativity and Engineering

Relativity and Engineering by Jean Bladel
English | PDF | 1984 | 414 Pages | ISBN : 3642692001 | 23.2 MB

The main feature of this book is the emphasis on "practice". This approach, unusual in the relativistic literature, may be clarified by quoting some problems discussed in the text: - the analysis of rocket acceleration to relativistic velocities - the influence of gravitational fields on the accuracy of time measurements - the operation of optical rotation sensors - the evaluation of the Doppler spectrum produced by the linear (or ro- tional) motion of an antenna or scatterer - the use of the Cerenkov effect in the design of millimeter-wave power generators - the influence of the motion of a plasma on the transmission of electrom- netic waves through this medium. A correct solution of these (and analogous) problems requires the use of re­ lativistic principles.

Asteroseismology

Posted By: AvaxGenius
Asteroseismology

Asteroseismology by C. Aerts , J. Christensen-Dalsgaard , D. W. Kurtz
English | PDF (True) | 2010 | 872 Pages | ISBN : 1402051786 | 26.7 MB

Understanding the stars is the bedrock of modern astrophysics. Stars are the source of life. The chemical enrichment of our Milky Way and of the Universe withallelementsheavierthanlithiumoriginatesintheinteriorsofstars.Stars arethe tracersofthe dynamics ofthe Universe,gravitationallyimplying much more than meets the eye. Stars ionize the interstellar medium and re-ionized the early intergalactic medium.

Theory of Gravitational Interactions

Posted By: AvaxGenius
Theory of Gravitational Interactions

Theory of Gravitational Interactions by Maurizio Gasperini
English | PDF (True) | 2013 | 330 Pages | ISBN : 8847026903 | 3.01 MB

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.

Relativity and the Nature of Spacetime

Posted By: AvaxGenius
Relativity and the Nature of Spacetime

Relativity and the Nature of Spacetime by Vesselin Petkov
English | PDF (True) | 2009 | 320 Pages | ISBN : 3642019528 | 4.1 MB

This expanded second edition of Relativity and the Nature of Spacetime c- tains several major changes and a number of additions to different ch- ters. Two chapters (Chaps. 6 and 7), which discussed two speci?c groups of arguments against the reality of spacetime, have been transformed into - pendices (A and B). Two new chapters (Chaps. 6 and 10) have been added. Chapter 6, entitled Why Is the Issue of the Nature of Spacetime So Imp- tant?, elaborates on what was Sect. 5. 6 of the ?rst edition, and addresses some recent work on the nature of spacetime – for example, the growing (or evolving) block universe model of the world, which has recently been - vived by several physicists as what appears to be the last remaining alter- tive to the Minkowski absolute four-dimensional world (after it had become an undeniable fact that three-dimensionalism, or presentism, contradicts the relativistic experimental evidence). Chapter 10, entitled Spacetime and the Nature of Quantum Objects and based on what used to be Sects. 6. 2 and 6. 3 in the ?rst edition, explores the implications of the issue of the nature of spacetime for quantum physics, in order to see whether it can provide some insight into the nature of quantum objects. Two new sections have been included, namely, Sect. 5. 6 entitled Re- tivization of Existence and Observers in General Relativity and Sect. 7. 6 - titled Probing the Anisotropic Velocity of Light by a Terrestrial Experiment.

Gerthsen Physik

Posted By: AvaxGenius
Gerthsen Physik

Gerthsen Physik by Dieter Meschede
Deutsch | EPUB (True) | 2010 | 1056 Pages | ISBN : 3642128939 | 42.4 MB

Für die Studierenden der Physik im Haupt- und Nebenfach ist der Gerthsen ein unverzichtbarer und kompetenter Begleiter durch das gesamte Studium. Nahezu alle Studierenden beginnen mit dem Klassiker Gerthsen. Sämtliche Gebiete der Physik werden ausführlich und gut verständlich dargestellt. Das Buch stellt alle klassischen Themen vor - Mechanik, Wärmelehre, Elektrodynamik, Optik. Darauf aufbauende Themen der klassischen Physik wie die Nichtlineare Dynamik und die Relativitätstheorie sind in logischer Reihenfolge integriert. Nach einem Kapitel über Teilchen und Wellen zur Einführung in die mikroskopische Physik werden die Konsequenzen für Atome, Moleküle, Laser, feste Körper und subatomare Teilchen vorgestellt.

The biggest open challenges of physics and solution: A new approach to quantum gravity and the unification of forces

Posted By: Free butterfly
The biggest open challenges of physics and solution: A new approach to quantum gravity and the unification of forces

The biggest open challenges of physics and solution: A new approach to quantum gravity and the unification of forces by Hossein Javadi
English | 2020 | ISBN: N/A | ASIN: B087RM7W7N | 175 pages | EPUB | 1.17 Mb

Gravitation and Cosmology: From the Hubble Radius to the Planck Scale

Posted By: AvaxGenius
Gravitation and Cosmology: From the Hubble Radius to the Planck Scale

Gravitation and Cosmology: From the Hubble Radius to the Planck Scale: Proceedings of a Symposium in Honour of the 80th Birthday of Jean-Pierre Vigier by Richard L. Amoroso, Geoffrey Hunter, Menas Kafatos, Jean-Pierre Vigier
English | PDF | 2002 | 556 Pages | ISBN : 1402008856 | 18.8 MB

Jean-Pierre Vigier continually labeled one of les heretiques de la science, l’eternel resistant et le patriarche is yet a pillar of modern physics and mathematics, with one leg firmly planted in theory and the other in empiricism spanning a career of nearly 60 years with a publication vitae quickly approaching 400! He wrote of his mentor Louis de Broglie “Great physicists fight great battles”, which perhaps applies even more so to 1 Jean-Pierre Vigier himself.

Cosmology, Quantum Vacuum and Zeta Functions In Honor of Emilio Elizalde

Posted By: AvaxGenius
Cosmology, Quantum Vacuum and Zeta Functions In Honor of Emilio Elizalde

Cosmology, Quantum Vacuum and Zeta Functions: In Honor of Emilio Elizalde by Sergey D. Odintsov, Diego Sáez-Gómez, Sebastian Xambó-Descamps
English | PDF (True) | 2011 | 379 Pages | ISBN : 3642197590 | 7.95 MB

Some major developments of physics in the last three decades are addressed by highly qualified specialists in different specific fields. They include renormalization problems in QFT, vacuum energy fluctuations and the Casimir effect in different configurations, and a wealth of applications. A number of closely related issues are also considered. The cosmological applications of these theories play a crucial role and are at the very heart of the book; in particular, the possibility to explain in a unified way the whole history of the evolution of the Universe: from primordial inflation to the present day accelerated expansion. Further, a description of the mathematical background underlying many of the physical theories considered above is provided. This includes the uses of zeta functions in physics, as in the regularization problems in QFT already mentioned, specifically in curved space-time, and in Casimir problems as.

Data Analysis in Cosmology

Posted By: AvaxGenius
Data Analysis in Cosmology

Data Analysis in Cosmology by Vicent J. Martinez, Enn Saar, Enrique Martinez Gonzales, Maria Jesus Pons-Borderia
English | PDF (True) | 2009 | 636 Pages | ISBN : 3540239723 | 17.15 MB

The amount of cosmological data has dramatically increased in the past decades due to an unprecedented development of telescopes, detectors and satellites. Efficiently handling and analysing new data of the order of terabytes per day requires not only computer power to be processed but also the development of sophisticated algorithms and pipelines.
Aiming at students and researchers the lecture notes in this volume explain in pedagogical manner the best techniques used to extract information from cosmological data, as well as reliable methods that should help us improve our view of the universe.