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New Paths Towards Quantum Gravity

2011-11-23 Science
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Release : 2011-11-23
Genre : Science
Kind : eBook
Book Rating : 057/5 ( reviews)

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Book Synopsis New Paths Towards Quantum Gravity by : Bernhelm Booß-Bavnbek

Download or read book New Paths Towards Quantum Gravity written by Bernhelm Booß-Bavnbek. This book was released on 2011-11-23. Available in PDF, EPUB and Kindle. Book excerpt: Aside from the obvious statement that it should be a theory capable of unifying general relativity and quantum field theory, not much is known about the true nature of quantum gravity. New ideas - and there are many of them for this is an exciting field of research - often diverge to a degree where it seems impossible to decide in which of the many possible direction(s) the ongoing developments should be further sustained. The division of the book in two (overlapping) parts reflects the duality between the physical vision and the mathematical construction. The former is represented by tutorial reviews on non-commutative geometry, on space-time discretization and renormalization and on gauge field path integrals. The latter one by lectures on cohomology, on stochastic geometry and on mathematical tools for the effective action in quantum gravity. The book will benefit everyone working or entering the field of quantum gravity research.

New Paths Towards Quantum Gravity

2010-06-04 Science
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Release : 2010-06-04
Genre : Science
Kind : eBook
Book Rating : 968/5 ( reviews)

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Book Synopsis New Paths Towards Quantum Gravity by : Bernhelm Booß-Bavnbek

Download or read book New Paths Towards Quantum Gravity written by Bernhelm Booß-Bavnbek. This book was released on 2010-06-04. Available in PDF, EPUB and Kindle. Book excerpt: Aside from the obvious statement that it should be a theory capable of unifying general relativity and quantum field theory, not much is known about the true nature of quantum gravity. New ideas - and there are many of them for this is an exciting field of research - often diverge to a degree where it seems impossible to decide in which of the many possible direction(s) the ongoing developments should be further sustained. The division of the book in two (overlapping) parts reflects the duality between the physical vision and the mathematical construction. The former is represented by tutorial reviews on non-commutative geometry, on space-time discretization and renormalization and on gauge field path integrals. The latter one by lectures on cohomology, on stochastic geometry and on mathematical tools for the effective action in quantum gravity. The book will benefit everyone working or entering the field of quantum gravity research.

Three Roads To Quantum Gravity

2008-03-18 Science
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Release : 2008-03-18
Genre : Science
Kind : eBook
Book Rating : 244/5 ( reviews)

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Book Synopsis Three Roads To Quantum Gravity by : Lee Smolin

Download or read book Three Roads To Quantum Gravity written by Lee Smolin. This book was released on 2008-03-18. Available in PDF, EPUB and Kindle. Book excerpt: "It would be hard to imagine a better guide to this difficult subject." -- Scientific American In Three Roads to Quantum Gravity, Lee Smolin provides an accessible overview of the attempts to build a final "theory of everything." He explains in simple terms what scientists are talking about when they say the world is made from exotic entities such as loops, strings, and black holes and tells the fascinating stories behind these discoveries: the rivalries, epiphanies, and intrigues he witnessed firsthand. "Provocative, original, and unsettling." -- The New York Review of Books "An excellent writer, a creative thinker." -- Nature

Quantum Gravitation

2008-10-20 Science
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Release : 2008-10-20
Genre : Science
Kind : eBook
Book Rating : 93X/5 ( reviews)

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Book Synopsis Quantum Gravitation by : Herbert W. Hamber

Download or read book Quantum Gravitation written by Herbert W. Hamber. This book was released on 2008-10-20. Available in PDF, EPUB and Kindle. Book excerpt: "Quantum Gravitation" approaches the subject from the point of view of Feynman path integrals, which provide a manifestly covariant approach in which fundamental quantum aspects of the theory such as radiative corrections and the renormalization group can be systematically and consistently addressed. It is shown that the path integral method is suitable for both perturbative as well as non-perturbative studies, and is already known to offer a framework for the theoretical investigation of non-Abelian gauge theories, the basis for three of the four known fundamental forces in nature. The book thus provides a coherent outline of the present status of the theory gravity based on Feynman’s formulation, with an emphasis on quantitative results. Topics are organized in such a way that the correspondence to similar methods and results in modern gauge theories becomes apparent. Covariant perturbation theory are developed using the full machinery of Feynman rules, gauge fixing, background methods and ghosts. The renormalization group for gravity and the existence of non-trivial ultraviolet fixed points are investigated, stressing a close correspondence with well understood statistical field theory models. The final chapter addresses contemporary issues in quantum cosmology such as scale dependent gravitational constants and quantum effects in the early universe.

Approaches to Quantum Gravity

2009-03-05 Science
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Release : 2009-03-05
Genre : Science
Kind : eBook
Book Rating : 458/5 ( reviews)

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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. This book was released on 2009-03-05. 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.

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