Quantum Gravity And Cosmology Based On Conformal Field Theory PDF Download
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| Author | : Ken-ji Hamada |
| Publisher | : Cambridge Scholars Publishing |
| Total Pages | : 409 |
| Release | : 2019-01-18 |
| Genre | : Science |
| ISBN | : 1527526321 |
Download Quantum Gravity and Cosmology Based on Conformal Field Theory Book in PDF, ePub and Kindle
What is the world beyond the Planck scale that provides the minimum unit of the universe? The goal of quantum gravity is to reveal physical laws in such a world. There, quantum fluctuations of gravity become large, and what is called a background-free world where the concept of time and distance is lost shall be realized. The renormalizable quantum gravity introduced in this book offers a theory in which such a world is described by a certain conformal field theory and a deviation from there is handled as a perturbation. This is the state-of-the-art of modern physics that will help in understanding the history of the universe, from its birth to the present.
| Author | : J.V. Narlikar |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 477 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9400945086 |
Download Gravity, Gauge Theories and Quantum Cosmology Book in PDF, ePub and Kindle
For several decades since its inception, Einstein's general theory of relativity stood somewhat aloof from the rest of physics. Paradoxically, the attributes which normally boost a physical theory - namely, its perfection as a theoreti cal framework and the extraordinary intellectual achievement underlying i- prevented the general theory from being assimilated in the mainstream of physics. It was as if theoreticians hesitated to tamper with something that is manifestly so beautiful. Happily, two developments in the 1970s have narrowed the gap. In 1974 Stephen Hawking arrived at the remarkable result that black holes radiate after all. And in the second half of the decade, particle physicists discovered that the only scenario for applying their grand unified theories was offered by the very early phase in the history of the Big Bang universe. In both cases, it was necessary to discuss the ideas of quantum field theory in the background of curved spacetime that is basic to general relativity. This is, however, only half the total story. If gravity is to be brought into the general fold of theoretical physics we have to know how to quantize it. To date this has proved a formidable task although most physicists would agree that, as in the case of grand unified theories, quantum gravity will have applications to cosmology, in the very early stages of the Big Bang universe. In fact, the present picture of the Big Bang universe necessarily forces us to think of quantum cosmology.
| Author | : Behram N. Kursunogammalu |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 233 |
| Release | : 2005-12-27 |
| Genre | : Science |
| ISBN | : 0306471043 |
Download Quantum Gravity, Generalized Theory of Gravitation, and Superstring Theory-Based Unification Book in PDF, ePub and Kindle
Held December 16-19, 1999, these proceedings are derived from the Global Foundation Inc.'s Orbis Scientiae 1999. Topics include: cosmological parameters; unifying elementary particle physics; cosmology; superstrings; and black holes.
| Author | : Jasjeet Singh Bagla |
| Publisher | : Springer |
| Total Pages | : 491 |
| Release | : 2017-02-23 |
| Genre | : Science |
| ISBN | : 3319517007 |
Download Gravity and the Quantum Book in PDF, ePub and Kindle
This book provides a compilation of in-depth articles and reviews on key topics within gravitation, cosmology and related issues. It is a celebratory volume dedicated to Prof. Thanu Padmanabhan ("Paddy"), the renowned relativist and cosmologist from IUCAA, India, on the occasion of his 60th birthday. The authors, many of them leaders of their fields, are all colleagues, collaborators and former students of Paddy, who have worked with him over a research career spanning more than four decades. Paddy is a scientist of diverse interests, who attaches great importance to teaching. With this in mind, the aim of this compilation is to provide an accessible pedagogic introduction to, and overview of, various important topics in cosmology, gravitation and astrophysics. As such it will be an invaluable resource for scientists, graduate students and also advanced undergraduates seeking to broaden their horizons.
| Author | : Marc Henneaux |
| Publisher | : World Scientific |
| Total Pages | : 295 |
| Release | : 2007-01-04 |
| Genre | : Science |
| ISBN | : 9814477273 |
Download Quantum Structure Of Space And Time, The - Proceedings Of The 23rd Solvay Conference On Physics Book in PDF, ePub and Kindle
Ever since 1911, the Solvay Conferences have shaped modern physics. The 23rd edition, chaired by 2004 Nobel Laureate David Gross, did not break with that tradition. It gathered most of the leading figures working on the central problem of reconciling Einstein's theory of gravity with quantum mechanics.These proceedings give a broad overview with unique insight into the most fundamental issues raised by this challenge for 21st century physics, by distinguished renowned scientists. The contributions cover: the status of quantum mechanics, spacetime singularities and breakdown of classical space and time, mathematical structures underlying the most promising attempts under current development, spacetime as an emergent concept, as well as cosmology and the cosmological constant puzzle. A historical overview of the Solvay conferences by historian of sciences Peter Galison opens the volume.In the Solvay tradition, the volume also includes the discussions among the participants — many of which were quite lively and illustrate dramatically divergent points of view — carefully edited and reproduced in full.
| Author | : Héctor J. Vega |
| Publisher | : |
| Total Pages | : 532 |
| Release | : 1987 |
| Genre | : Cosmology |
| ISBN | : |
Download String Theory, Quantum Cosmology and Quantum Gravity Book in PDF, ePub and Kindle
| Author | : Poul Henrik Damgaard |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 360 |
| Release | : 2006-04-11 |
| Genre | : Science |
| ISBN | : 0306470756 |
Download New Developments in Quantum Field Theory Book in PDF, ePub and Kindle
Quantum field theory is one of most central constructions in 20th century th- retical physics, and it continues to develop rapidly in many different directions. The aim of the workshop “New Developments in Quantum Field Theory”, which was held in Zakopane, Poland, June 14-20, 1997, was to capture a broad selection of the most recent advances in this field. The conference was sponsored by the Scientific and - vironmental Affairs Division of NATO, as part of the Advanced Research Workshop series. This book contains the proceedings of that meeting. Major topics covered at the workshop include quantized theories of gravity, string theory, conformal field theory, cosmology, field theory approaches to critical phenomena and the renormalization group, matrix models, and field theory techniques applied to the theory of turbulence. One common theme at the conference was the use of large-Nmatrix models to obtain exact results in a variety of different disciplines. For example, it has been known for several years that by taking a suitable double-scaling limit, certain string theories (or two-dimensional quantum gravity coupled to matter) can be re-obtained from the large-Nexpansion of matrix models. There continues to be a large activity in this area of research, which was well reflected by talks given at our workshop. Remarkably, large- Nmatrix models have very recently – just a few months before our meeting – been shown to have yet another deep relation to string theory.
| Author | : Peter G. Bergmann |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 553 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401003475 |
Download Advances in the Interplay Between Quantum and Gravity Physics Book in PDF, ePub and Kindle
In this XVII Course of the International School of Cosmology and Gravitation devoted to "ADVANCES IN THE INTERPLAY BETWEEN QUANTUM AND GRAVITY PHYSICS" we have considered different aspects of the influence of gravity on quantum systems. In order to achieve this aim, in many lectures, seminars and discussions we have strengthened the interplay between gravity and quantum systems starting from the situation in the early universe based on astrophysical observations, up to the earthly based experiments with atom interferometry for probing the structure of space-time. Thus we have had timely lectures on the quantum field and horizon of a black hole including reviews of the problem of black holes thermodynamics and entropy, quantum information, quantum black holes, quantum evaporation and Hawking radiation, recent advances in stockastic gravity. We have also discussed quantum fluctuations in inflationary universe, quantum effects and reheating after inflation, and superplanckian energies in Hawking radiation. In this regard the subject of spinors in purely affine space-time and Dirac matter according to Weyl in the generalized theory of gravitation were developed . The dualism between space-time and matter has been deeply analyzed in order to see why, for general relativity, this is an obstacle for quantization of the theory. Also canonical Gravity and Mach's principle, torsion and curvature as commutator for Quantum Gravity and Dirac Geometry of real space-time were analysed, together with the problem of 5-Dimensional Projective Unified Field theory and Multidimensional Gravity and Cosmology.
| Author | : Antonino Zichichi |
| Publisher | : World Scientific |
| Total Pages | : 606 |
| Release | : 1993-06-30 |
| Genre | : |
| ISBN | : 9814553980 |
Download String Quantum Gravity And Physics At The Planck Energy Scale - International Workshop On Theoretical Physics Book in PDF, ePub and Kindle
The papers in this volume provide an updated status of the last developments and current problems in string theory in connection with gravity and the physics at the Planck scale. This volume also contains excellent discussions on fundamental problems of quantum gravity and the physics at the Planck energy scale in the present-day context, irrespective of strings or any other models.
| Author | : Felix Finster |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 389 |
| Release | : 2012-02-08 |
| Genre | : Mathematics |
| ISBN | : 3034800436 |
Download Quantum Field Theory and Gravity Book in PDF, ePub and Kindle
One of the most challenging problems of contemporary theoretical physics is the mathematically rigorous construction of a theory which describes gravitation and the other fundamental physical interactions within a common framework. The physical ideas which grew from attempts to develop such a theory require highly advanced mathematical methods and radically new physical concepts. This book presents different approaches to a rigorous unified description of quantum fields and gravity. It contains a carefully selected cross-section of lively discussions which took place in autumn 2010 at the fifth conference "Quantum field theory and gravity - Conceptual and mathematical advances in the search for a unified framework" in Regensburg, Germany. In the tradition of the other proceedings covering this series of conferences, a special feature of this book is the exposition of a wide variety of approaches, with the intention to facilitate a comparison. The book is mainly addressed to mathematicians and physicists who are interested in fundamental questions of mathematical physics. It allows the reader to obtain a broad and up-to-date overview of a fascinating active research area.
