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Gravity and Strings

Gravity and Strings PDF Author: Tomás Ortín
Publisher: Cambridge University Press
ISBN: 0521768136
Category : Science
Languages : en
Pages : 1043

Book Description
Self-contained and comprehensive, this definitive new edition provides a complete overview of the intersection of gravity, supergravity, and superstrings.

Gravity and Strings

Gravity and Strings PDF Author: Tomás Ortín
Publisher: Cambridge University Press
ISBN: 0521768136
Category : Science
Languages : en
Pages : 1043

Book Description
Self-contained and comprehensive, this definitive new edition provides a complete overview of the intersection of gravity, supergravity, and superstrings.

Gravity and Strings

Gravity and Strings PDF Author: Tomás Ortín
Publisher: Cambridge University Press
ISBN: 9780521035460
Category : Science
Languages : en
Pages : 712

Book Description
One appealing feature of string theory is that it provides a theory of quantum gravity. Gravity and Strings is a self-contained, pedagogical exposition of this theory, its foundations and its basic results. In Part I, the foundations are traced back to the very early special-relativistic field theories of gravity, showing how such theories lead to general relativity. Gauge theories of gravity are then discussed and used to introduce supergravity theories. In Part II, some of the most interesting solutions of general relativity and its generalizations are studied. The final Part presents and studies string theory from the effective action point of view, using the results found earlier in the book as background. This 2004 book will be useful as a reference book for graduate students and researchers, as well as a complementary textbook for courses on gravity, supergravity and string theory.

Strings, Branes And Gravity (Tasi 1999)

Strings, Branes And Gravity (Tasi 1999) PDF Author: Jeffrey A Harvey
Publisher: World Scientific
ISBN: 9814489948
Category : Science
Languages : en
Pages : 954

Book Description
Many of the topics in this book are outgrowths of the spectacular new understanding of duality in string theory which emerged around 1995. They include the AdS/CFT correspondence and its relation to holography, the matrix theory formulation of M theory, the structure of black holes in string theory, the structure of D-branes and M-branes, and detailed development of dualities with N = 1 and N = 2 supersymmetry. In addition, there are lectures covering experimental and phenomenological aspects of the Standard Model and its extensions, and discussions on cosmology including both theoretical aspects and the exciting new experimental evidence for a non-zero cosmological constant.

Strings and Gravity

Strings and Gravity PDF Author: Marc Henneaux
Publisher: De Boeck Supérieur
ISBN: 9782804140946
Category : Science
Languages : en
Pages : 310

Book Description
La théorie de la gravitation d'Einstein ("relativité générale") est un des piliers de la physique moderne. Cette théorie a connu des développements spectaculaires ces dernières années, aussi bien sur le plan expérimental que sur le plan théorique. En particulier, la théorie des cordes, née il y a une quinzaine d'années, offre des perspectives remarquables d'unification de la force gravitationnelle aux autres forces fondamentales - réalisant ainsi un des vieux rêves d'Einstein. Cet ouvrage rassemble les contributions des experts mondiaux du domaine ayant participé au colloque Francqui qui s'est tenu sur ce thème à Bruxelles du 19 au 21 octobre 2001. Einstein theory of gravity is one of the pillars of modern physics. In the last years, this theory has undergone dramatic developments, both on the experimental and theoretical sides. In particular, string theory, which started in the last quarter of the XXth century, offers remarkable prospects to unify all the fundamental interactions - realizing thereby one of the Einstein's dreams. This book contains the contributions of the world leaders in the field who took part in the "Francqui conference" held on this theme in Brussels in October 2001.

Quantum Field Theory II

Quantum Field Theory II PDF Author: Edouard B. Manoukian
Publisher: Springer
ISBN: 3319338528
Category : Science
Languages : en
Pages : 374

Book Description
This book takes a pedagogical approach to explaining quantum gravity, supersymmetry and string theory in a coherent way. It is aimed at graduate students and researchers in quantum field theory and high-energy physics. The first part of the book introduces quantum gravity, without requiring previous knowledge of general relativity (GR). The necessary geometrical aspects are derived afresh leading to explicit general Lagrangians for gravity, including that of general relativity. The quantum aspect of gravitation, as described by the graviton, is introduced and perturbative quantum GR is discussed. The Schwinger-DeWitt formalism is developed to compute the one-loop contribution to the theory and renormalizability aspects of the perturbative theory are also discussed. This follows by introducing only the very basics of a non-perturbative, background-independent, formulation of quantum gravity, referred to as “loop quantum gravity”, which gives rise to a quantization of space. In the second part the author introduces supersymmetry and its consequences. The generation of superfields is represented in detail. Supersymmetric generalizations of Maxwell’s Theory as well as of Yang-Mills field theory, and of the standard model are worked out. Spontaneous symmetry breaking, improvement of the divergence problem in supersymmetric field theory, and its role in the hierarchy problem are covered. The unification of the fundamental constants in a supersymmetric version of the standard model are then studied. Geometrical aspects necessary to study supergravity are developed culminating in the derivation of its full action. The third part introduces string theory and the analysis of the spectra of the mass (squared) operator associated with the oscillating strings. The properties of the underlying fields, associated with massless particles, encountered in string theory are studied in some detail. Elements of compactification, duality and D-branes are given, as well of the generation of vertices and interactions of strings. In the final sections, the author shows how to recover GR and the Yang-Mills field Theory from string theory.

The Emergence of Spacetime in String Theory

The Emergence of Spacetime in String Theory PDF Author: Tiziana Vistarini
Publisher: Routledge
ISBN: 1134842406
Category : Philosophy
Languages : en
Pages : 224

Book Description
The nature of space and time is one of the most fascinating and fundamental philosophical issues which presently engages at the deepest level with physics. During the last thirty years this notion has been object of an intense critical review in the light of new scientific theories which try to combine the principles of both general relativity and quantum theory—called theories of quantum gravity. This book considers the way string theory shapes its own account of spacetime disappearance from the fundamental level.

The Little Book of String Theory

The Little Book of String Theory PDF Author: Steven S. Gubser
Publisher: Princeton University Press
ISBN: 1400834430
Category : Science
Languages : en
Pages : 183

Book Description
The essential beginner's guide to string theory The Little Book of String Theory offers a short, accessible, and entertaining introduction to one of the most talked-about areas of physics today. String theory has been called the "theory of everything." It seeks to describe all the fundamental forces of nature. It encompasses gravity and quantum mechanics in one unifying theory. But it is unproven and fraught with controversy. After reading this book, you'll be able to draw your own conclusions about string theory. Steve Gubser begins by explaining Einstein's famous equation E = mc2, quantum mechanics, and black holes. He then gives readers a crash course in string theory and the core ideas behind it. In plain English and with a minimum of mathematics, Gubser covers strings, branes, string dualities, extra dimensions, curved spacetime, quantum fluctuations, symmetry, and supersymmetry. He describes efforts to link string theory to experimental physics and uses analogies that nonscientists can understand. How does Chopin's Fantasie-Impromptu relate to quantum mechanics? What would it be like to fall into a black hole? Why is dancing a waltz similar to contemplating a string duality? Find out in the pages of this book. The Little Book of String Theory is the essential, most up-to-date beginner's guide to this elegant, multidimensional field of physics.

Why String Theory?

Why String Theory? PDF Author: Joseph Conlon
Publisher: CRC Press
ISBN: 1482242494
Category : Mathematics
Languages : en
Pages : 256

Book Description
Physics World's 'Book of the Year' for 2016 An Entertaining and Enlightening Guide to the Who, What, and Why of String Theory, now also available in an updated reflowable electronic format compatible with mobile devices and e-readers. During the last 50 years, numerous physicists have tried to unravel the secrets of string theory. Yet why do these scientists work on a theory lacking experimental confirmation? Why String Theory? provides the answer, offering a highly readable and accessible panorama of the who, what, and why of this large aspect of modern theoretical physics. The author, a theoretical physics professor at the University of Oxford and a leading string theorist, explains what string theory is and where it originated. He describes how string theory fits into physics and why so many physicists and mathematicians find it appealing when working on topics from M-theory to monsters and from cosmology to superconductors.

Not Even Wrong

Not Even Wrong PDF Author: Peter Woit
Publisher: Basic Books
ISBN: 046500363X
Category : Science
Languages : en
Pages : 336

Book Description
At what point does theory depart the realm of testable hypothesis and come to resemble something like aesthetic speculation, or even theology? The legendary physicist Wolfgang Pauli had a phrase for such ideas: He would describe them as "not even wrong," meaning that they were so incomplete that they could not even be used to make predictions to compare with observations to see whether they were wrong or not. In Peter Woit's view, superstring theory is just such an idea. In Not Even Wrong , he shows that what many physicists call superstring "theory" is not a theory at all. It makes no predictions, even wrong ones, and this very lack of falsifiability is what has allowed the subject to survive and flourish. Not Even Wrong explains why the mathematical conditions for progress in physics are entirely absent from superstring theory today and shows that judgments about scientific statements, which should be based on the logical consistency of argument and experimental evidence, are instead based on the eminence of those claiming to know the truth. In the face of many books from enthusiasts for string theory, this book presents the other side of the story.

The Trouble with Physics

The Trouble with Physics PDF Author: Lee Smolin
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618551057
Category : Science
Languages : en
Pages : 420

Book Description
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