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Quantum Gravity and Cosmology Based on Conformal Field Theory

2019-01-18 Science
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Release : 2019-01-18
Genre : Science
Kind : eBook
Book Rating : 321/5 ( reviews)

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Book Synopsis Quantum Gravity and Cosmology Based on Conformal Field Theory by : Ken-ji Hamada

Download or read book Quantum Gravity and Cosmology Based on Conformal Field Theory written by Ken-ji Hamada. This book was released on 2019-01-18. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Gravity, Gauge Theories and Quantum Cosmology

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 086/5 ( reviews)

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Book Synopsis Gravity, Gauge Theories and Quantum Cosmology by : J.V. Narlikar

Download or read book Gravity, Gauge Theories and Quantum Cosmology written by J.V. Narlikar. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Quantum Gravity, Generalized Theory of Gravitation, and Superstring Theory-Based Unification

2005-12-27 Science
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Release : 2005-12-27
Genre : Science
Kind : eBook
Book Rating : 043/5 ( reviews)

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Book Synopsis Quantum Gravity, Generalized Theory of Gravitation, and Superstring Theory-Based Unification by : Behram N. Kursunogammalu

Download or read book Quantum Gravity, Generalized Theory of Gravitation, and Superstring Theory-Based Unification written by Behram N. Kursunogammalu. This book was released on 2005-12-27. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Quantum Structure Of Space And Time, The - Proceedings Of The 23rd Solvay Conference On Physics

2007-01-04 Science
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Release : 2007-01-04
Genre : Science
Kind : eBook
Book Rating : 273/5 ( reviews)

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Book Synopsis Quantum Structure Of Space And Time, The - Proceedings Of The 23rd Solvay Conference On Physics by : Marc Henneaux

Download or read book Quantum Structure Of Space And Time, The - Proceedings Of The 23rd Solvay Conference On Physics written by Marc Henneaux. This book was released on 2007-01-04. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Gravity and the Quantum

2017-02-23 Science
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Release : 2017-02-23
Genre : Science
Kind : eBook
Book Rating : 007/5 ( reviews)

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Book Synopsis Gravity and the Quantum by : Jasjeet Singh Bagla

Download or read book Gravity and the Quantum written by Jasjeet Singh Bagla. This book was released on 2017-02-23. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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