Matter, Gravity and Spin

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Publisher :
ISBN 13 : 9780533066841
Total Pages : 99 pages
Book Rating : 4.0/5 (668 download)

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Book Synopsis Matter, Gravity and Spin by : Clarence A. Gall

Download or read book Matter, Gravity and Spin written by Clarence A. Gall and published by . This book was released on 1987 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Interaction of Spin with Gravity in Particle Physics

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Publisher : Springer Nature
ISBN 13 : 3030847713
Total Pages : 201 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis The Interaction of Spin with Gravity in Particle Physics by : Gaetano Lambiase

Download or read book The Interaction of Spin with Gravity in Particle Physics written by Gaetano Lambiase and published by Springer Nature. This book was released on 2021-09-27 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book seeks to present a new way of thinking about the interaction of gravitational fields with quantum systems. Despite the massive amounts of research and experimentation, the myriad meetings, seminars and conferences, all of the articles, treatises and books, and the seemingly endless theorization, quantization and just plain speculation that have been engaged in regarding our evolving understanding of the quantum world, that world remains an enigma, even to the experts. The usefulness of general relativity in this regard has proven to be imperfect at best, but there is a new approach. We do not simply have to accept the limitations of Einstein's most celebrated theorem in regard to quantum theory; we can also embrace them, and thereby utilize them, to reveal new facts about the behavior of quantum systems within inertial and gravitational fields, and therefore about the very structure of space–time at the quantum level. By taking existing knowledge of the essential functionality of spin (along with the careful identification of the omnipresent inertial effects) and applying it to the quantum world, the book gives the reader a much clearer picture of the difference between the classical and quantum behaviors of a particle, shows that Einstein's ideas may not be as incompatible within this realm as many have come to believe, sparks new revelations of the way in which gravity affects quantum systems and brings a new level of efficiency—quantum efficiency, if you will—to the study of gravitational theory.

Spin In Gravity - Is It Possible To Give An Experimental Basis To Torsion?

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Publisher : World Scientific
ISBN 13 : 9814544922
Total Pages : 274 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Spin In Gravity - Is It Possible To Give An Experimental Basis To Torsion? by : Venzo De Sabbata

Download or read book Spin In Gravity - Is It Possible To Give An Experimental Basis To Torsion? written by Venzo De Sabbata and published by World Scientific. This book was released on 1998-07-08 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of spin is believed to be a necessary tool if one wishes to quantize general relativity. Then the main problem is to see if the introduction of spin generalizing the general relativity from a geometric point of view, i.e. through the concept of torsion, can be experimentally verified.The reader can find in this book both theoretical and experimental arguments which show the necessity for the introduction of spin, and then of torsion, in gravity. In fact, torsion constitutes the more natural and simple way to introduce spin in general relativity. For that reason it is of fundamental importance to see if there are some experiences that indicate — if not directly, then at least indirectly — the presence of torsion. This book presents a discussion on experiments with a polarized-mass torsion pendulum, the search for galactic dark matter interacting with a spin pendulum, a description of a space-based method for determination of the gravitational constant and space-based measurements of spin in gravity, as well as a discussion on theoretical arguments, for instance the nature of torsion and nonmetricity, the viability of gravitational theories with spin-torsion and spin-spin interaction, many-dimensional gravitational theories with torsion, spinors on curved spaces, the spinors in real space-time, etc.We know that until now there has been no evidence for torsion, but this fact cannot prevent us from considering in some detail this implement of research that seems to be important from both a geometrical and a physical point of view.

The Biggest Ideas in the Universe

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Publisher : Penguin
ISBN 13 : 0593186583
Total Pages : 305 pages
Book Rating : 4.5/5 (931 download)

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Book Synopsis The Biggest Ideas in the Universe by : Sean Carroll

Download or read book The Biggest Ideas in the Universe written by Sean Carroll and published by Penguin. This book was released on 2022-09-20 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: INSTANT NEW YORK TIMES BESTSELLER “Most appealing... technical accuracy and lightness of tone... Impeccable.”—Wall Street Journal “A porthole into another world.”—Scientific American “Brings science dissemination to a new level.”—Science The most trusted explainer of the most mind-boggling concepts pulls back the veil of mystery that has too long cloaked the most valuable building blocks of modern science. Sean Carroll, with his genius for making complex notions entertaining, presents in his uniquely lucid voice the fundamental ideas informing the modern physics of reality. Physics offers deep insights into the workings of the universe but those insights come in the form of equations that often look like gobbledygook. Sean Carroll shows that they are really like meaningful poems that can help us fly over sierras to discover a miraculous multidimensional landscape alive with radiant giants, warped space-time, and bewilderingly powerful forces. High school calculus is itself a centuries-old marvel as worthy of our gaze as the Mona Lisa. And it may come as a surprise the extent to which all our most cutting-edge ideas about black holes are built on the math calculus enables. No one else could so smoothly guide readers toward grasping the very equation Einstein used to describe his theory of general relativity. In the tradition of the legendary Richard Feynman lectures presented sixty years ago, this book is an inspiring, dazzling introduction to a way of seeing that will resonate across cultural and generational boundaries for many years to come.

Spin and Torsion in Gravitation

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Publisher : World Scientific
ISBN 13 : 9789810217662
Total Pages : 336 pages
Book Rating : 4.2/5 (176 download)

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Book Synopsis Spin and Torsion in Gravitation by : Venzo De Sabbata

Download or read book Spin and Torsion in Gravitation written by Venzo De Sabbata and published by World Scientific. This book was released on 1994 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an exposition of both the old and new results of spin and torsion effects on gravitational interactions with implications for particle physics, cosmology etc. Physical aspects are stressed and measurable effects in relation to other areas of physics are discussed.Among the topics discussed are: alternative ways of unifying gravity with electroweak and strong interactions by an energy dependent spin torsion coupling constant; the idea that all interactions can be understood as originating from spin curvature coupling; the possibility of cosmological models with torsion providing a solution to the cosmological constant problem; and a demonstration that torsion can lead directly to the quantization of space-time itself.

Spacetime and Matter in Three-dimensional Higher Spin Gravity

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Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (844 download)

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Book Synopsis Spacetime and Matter in Three-dimensional Higher Spin Gravity by : Eric Justin Perlmutter

Download or read book Spacetime and Matter in Three-dimensional Higher Spin Gravity written by Eric Justin Perlmutter and published by . This book was released on 2012 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the physical content of three-dimensional higher spin gravity, a sophisticated toy model of high energy string theory. Starting from spin-3 gravity and working our way toward the theory of an infinite tower of higher spins coupled to matter, we show how to use higher spin gauge invariance to consistently generalize ordinary conceptions of black holes. We also consider the dynamics of scalar fields in nontrivial higher spin backgrounds. In view of the AdS/CFT correspondence as applied to certain vector-like conformal field theories with extended conformal symmetry, we make several successful comparisons of bulk and boundary computations.

Approaches to Quantum Gravity

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Publisher : Cambridge University Press
ISBN 13 : 0521860458
Total Pages : 605 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Approaches to Quantum Gravity by : Daniele Oriti

Download or read book Approaches to Quantum Gravity written by Daniele Oriti and published by Cambridge University Press. This book was released on 2009-03-05 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Torsion-Gravity and Spinors in Fundamental Theoretical Physics

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Publisher : Mdpi AG
ISBN 13 : 9783036579832
Total Pages : 0 pages
Book Rating : 4.5/5 (798 download)

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Book Synopsis Torsion-Gravity and Spinors in Fundamental Theoretical Physics by : Luca Fabbri

Download or read book Torsion-Gravity and Spinors in Fundamental Theoretical Physics written by Luca Fabbri and published by Mdpi AG. This book was released on 2023-06-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's theory of gravitation is perhaps one of the best-established theories ever conceived. However, it is based on the hypothesis that space-time carries curvature alone, leaving torsion out. Because torsion is a natural part of the most general geometric background in which Einstein gravity is built, it is all too natural that the torsional completion of gravity should be considered. Constructing an underlying stage in which both curvature and torsion are present, the fact that curvature couples with energy suggests that torsion may couple with spin, which is the other conserved quantity in quantum field theory. Torsion-gravity with spinning matter is, therefore, a complete and self-consistent setting for modern physics, with potential applications wherever spin effects may be important, stretching from quantum mechanics to the standard models of particle physics and early cosmology. However, this fact is not as present in today's literature as it might be. The scope of the present collection of papers is to consolidate the wisdom of various experts in the field so as to clarify the present status of torsion in gravity and spin in quantum field theory.

Gravity's Mysteries

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Publisher : Trafford Publishing
ISBN 13 : 1466910178
Total Pages : 125 pages
Book Rating : 4.4/5 (669 download)

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Book Synopsis Gravity's Mysteries by : Louis Komzsik

Download or read book Gravity's Mysteries written by Louis Komzsik and published by Trafford Publishing. This book was released on 2012-02 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity is the most detectable physical phenomenon of the universe. Nothing or nobody can escape its grasp, even in very large, astronomical distances. It is manifested in many aspects of our lives. Yet we are still not really sure what carries it. The gradually increasing understanding of gravity throughout history and its observed effects in various physical fields are the subjects of this book. This is an enlightening read about one of the most misterious phenomena of our lives that is still far from being fully understood, presenting a historical journey through several millennia of encountering and understanding gravity's mysteries.

Cosmology and Gravitation

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Publisher : Springer Science & Business Media
ISBN 13 : 1461331234
Total Pages : 508 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Cosmology and Gravitation by : Peter G. Bergmann

Download or read book Cosmology and Gravitation written by Peter G. Bergmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the Sixth Course of the International School of Cosmology and Gravitation of the "Ettore Maj orana" Centre for Scientific Cul ture we choose as the principal topics torsion and supergravity, because in our opinion it is one of the principal tasks of today's theoretical physics to attempt to link together the theory of ele mentary particles and general relativity. Our aim was to delineate the present status of the principal efforts directed toward this end, and to explore possible directions of work in the near future. Efforts to incorporate spin as a dynamic variable into the foundations of the theory of gravitation were poineered by E. Cartan, whose contributions to this problem go back half a century. Accord ing to A. Trautman this so-called Einstein-Cartan theory is the sim plest and most natural modification of Einstein's 1916 theory. F. Hehl has contributed a very detailed and comprehensive analysis of this topic, original view of non-Riemannian space-time. Characteristic of Einstein-Cartan theories is the enrichment of Riemannian geometry by torsion, the non-symmetric part of the otherwise metric-compatible affine connection. Torsion has a impact on the theory of elementary particles. According to V. de Sabbata, weak interactions can be based on the Einstein-Cartan geometry, in that the Lagrangian describing weak interactions and torsion inter- action possess analogous structures, leading to a unification of weak and gravitational forces.

Modifications of Einstein's Theory of Gravity at Large Distances

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Publisher : Springer
ISBN 13 : 331910070X
Total Pages : 435 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Modifications of Einstein's Theory of Gravity at Large Distances by : Eleftherios Papantonopoulos

Download or read book Modifications of Einstein's Theory of Gravity at Large Distances written by Eleftherios Papantonopoulos and published by Springer. This book was released on 2014-11-04 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few years modified gravity theories have been proposed as extensions of Einstein's theory of gravity. Their main motivation is to explain the latest cosmological and astrophysical data on dark energy and dark matter. The study of general relativity at small scales has already produced important results (cf e.g. LNP 863 Quantum Gravity and Quantum Cosmology) while its study at large scales is challenging because recent and upcoming observational results will provide important information on the validity of these modified theories. In this volume, various aspects of modified gravity at large scales will be discussed: high-curvature gravity theories; general scalar-tensor theories; Galileon theories and their cosmological applications; F(R) gravity theories; massive, new massive and topologically massive gravity; Chern-Simons modifications of general relativity (including holographic variants) and higher-spin gravity theories, to name but a few of the most important recent developments. 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.

Spin Glasses and Complexity

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Publisher : Princeton University Press
ISBN 13 : 1400845637
Total Pages : 336 pages
Book Rating : 4.4/5 (8 download)

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Book Synopsis Spin Glasses and Complexity by : Daniel L. Stein

Download or read book Spin Glasses and Complexity written by Daniel L. Stein and published by Princeton University Press. This book was released on 2013-01-15 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin glasses are disordered magnetic systems that have led to the development of mathematical tools with an array of real-world applications, from airline scheduling to neural networks. Spin Glasses and Complexity offers the most concise, engaging, and accessible introduction to the subject, fully explaining what spin glasses are, why they are important, and how they are opening up new ways of thinking about complexity. This one-of-a-kind guide to spin glasses begins by explaining the fundamentals of order and symmetry in condensed matter physics and how spin glasses fit into--and modify--this framework. It then explores how spin-glass concepts and ideas have found applications in areas as diverse as computational complexity, biological and artificial neural networks, protein folding, immune response maturation, combinatorial optimization, and social network modeling. Providing an essential overview of the history, science, and growing significance of this exciting field, Spin Glasses and Complexity also features a forward-looking discussion of what spin glasses may teach us in the future about complex systems. This is a must-have book for students and practitioners in the natural and social sciences, with new material even for the experts.

Reinventing Gravity

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Publisher : Harper Collins
ISBN 13 : 0061170887
Total Pages : 294 pages
Book Rating : 4.0/5 (611 download)

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Book Synopsis Reinventing Gravity by : John W. Moffat

Download or read book Reinventing Gravity written by John W. Moffat and published by Harper Collins. This book was released on 2008-09-30 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's gravity theory—his general theory of relativity—has served as the basis for a series of astonishing cosmological discoveries. But what if, nonetheless, Einstein got it wrong? Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have. Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The cap­stone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work chal­lenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence. This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.

Gravitation, Space-time and Matter

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Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Gravitation, Space-time and Matter by : Albert P. Mathews

Download or read book Gravitation, Space-time and Matter written by Albert P. Mathews and published by . This book was released on 1934 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Matter, Gravity and Dark Energy

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Publisher : Nicholas Summers
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4./5 ( download)

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Book Synopsis Matter, Gravity and Dark Energy by : Nicholas Summers

Download or read book Matter, Gravity and Dark Energy written by Nicholas Summers and published by Nicholas Summers. This book was released on with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thought provoking read for those with an interest in what causes gravity and matter's close relationship with dark energy. The book is written for the layman. There are no mathematics but some prior knowledge of physical principles will help provide a clearer understanding. It is more of a philosophical approach to some of science's unanswered questions.

Existential Physics

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Publisher : Penguin
ISBN 13 : 1984879464
Total Pages : 273 pages
Book Rating : 4.9/5 (848 download)

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Book Synopsis Existential Physics by : Sabine Hossenfelder

Download or read book Existential Physics written by Sabine Hossenfelder and published by Penguin. This book was released on 2022-08-09 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A NEW YORK TIMES BESTSELLER “An informed and entertaining guide to what science can and cannot tell us.” —The Wall Street Journal “Stimulating . . . encourage[s] readers to push past well-trod assumptions […] and have fun doing so.” —Science Magazine From renowned physicist and creator of the YouTube series “Science without the Gobbledygook,” a book that takes a no-nonsense approach to life’s biggest questions, and wrestles with what physics really says about the human condition Not only can we not currently explain the origin of the universe, it is questionable we will ever be able to explain it. The notion that there are universes within particles, or that particles are conscious, is ascientific, as is the hypothesis that our universe is a computer simulation. On the other hand, the idea that the universe itself is conscious is difficult to rule out entirely. According to Sabine Hossenfelder, it is not a coincidence that quantum entanglement and vacuum energy have become the go-to explanations of alternative healers, or that people believe their deceased grandmother is still alive because of quantum mechanics. Science and religion have the same roots, and they still tackle some of the same questions: Where do we come from? Where do we go to? How much can we know? The area of science that is closest to answering these questions is physics. Over the last century, physicists have learned a lot about which spiritual ideas are still compatible with the laws of nature. Not always, though, have they stayed on the scientific side of the debate. In this lively, thought-provoking book, Hossenfelder takes on the biggest questions in physics: Does the past still exist? Do particles think? Was the universe made for us? Has physics ruled out free will? Will we ever have a theory of everything? She lays out how far physicists are on the way to answering these questions, where the current limits are, and what questions might well remain unanswerable forever. Her book offers a no-nonsense yet entertaining take on some of the toughest riddles in existence, and will give the reader a solid grasp on what we know—and what we don’t know.

Superspace and Supergravity

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Publisher : CUP Archive
ISBN 13 : 9780521239080
Total Pages : 552 pages
Book Rating : 4.2/5 (39 download)

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Book Synopsis Superspace and Supergravity by : S. W. Hawking

Download or read book Superspace and Supergravity written by S. W. Hawking and published by CUP Archive. This book was released on 1981-04-30 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: