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EPFL Lectures on Conformal Field Theory in D ≥ 3 Dimensions

2016-09-30 Science
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Release : 2016-09-30
Genre : Science
Kind : eBook
Book Rating : 260/5 ( reviews)

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Book Synopsis EPFL Lectures on Conformal Field Theory in D ≥ 3 Dimensions by : Slava Rychkov

Download or read book EPFL Lectures on Conformal Field Theory in D ≥ 3 Dimensions written by Slava Rychkov. This book was released on 2016-09-30. Available in PDF, EPUB and Kindle. Book excerpt: This primer develops Conformal Field Theory (CFT) from scratch, whereby CFT is viewed as any conformally-invariant theory that describes a fixed point of a renormalization group flow in quantum field theory. The book is divided into four lectures: Lecture 1 addresses the physical foundations of conformal invariance, while Lecture 2 examines the constraints imposed by conformal symmetry on the correlation functions of local operators, presented using the so-called projective null cone – a procedure also known as the embedding formalism. In turn, Lecture 3 focuses on the radial quantization and the operator product expansion, while Lecture 4 offers a very brief introduction to the conformal bootstrap. Derived from course-based notes, these lectures are intended as a first point of entry to this topic for Master and PhD students alike.

EPFL Lectures on Conformal Field Theory in D >

2017 Quantum theory
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Release : 2017
Genre : Quantum theory
Kind : eBook
Book Rating : 272/5 ( reviews)

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Book Synopsis EPFL Lectures on Conformal Field Theory in D > by : Slava Rychkov

Download or read book EPFL Lectures on Conformal Field Theory in D > written by Slava Rychkov. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt:

String Field Theory

2021-03-26 Science
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Release : 2021-03-26
Genre : Science
Kind : eBook
Book Rating : 218/5 ( reviews)

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Book Synopsis String Field Theory by : Harold Erbin

Download or read book String Field Theory written by Harold Erbin. This book was released on 2021-03-26. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides an introduction to string field theory (SFT). String theory is usually formulated in the worldsheet formalism, which describes a single string (first-quantization). While this approach is intuitive and could be pushed far due to the exceptional properties of two-dimensional theories, it becomes cumbersome for some questions or even fails at a more fundamental level. These motivations have led to the development of SFT, a description of string theory using the field theory formalism (second-quantization). As a field theory, SFT provides a rigorous and constructive formulation of string theory. The main focus of the book is the construction of the closed bosonic SFT. The accent is put on providing the reader with the foundations, conceptual understanding and intuition of what SFT is. After reading this book, the reader is able to study the applications from the literature. The book is organized in two parts. The first part reviews the notions of the worldsheet theory that are necessary to build SFT (worldsheet path integral, CFT and BRST quantization). The second part starts by introducing general concepts of SFT from the BRST quantization. Then, it introduces off-shell string amplitudes before providing a Feynman diagrams interpretation from which the building blocks of SFT are extracted. After constructing the closed SFT, the author outlines the proofs of several important properties such as background independence, unitarity and crossing symmetry. Finally, the generalization to the superstring is also discussed.

Introduction to String Theory

2023-11-07 Science
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Release : 2023-11-07
Genre : Science
Kind : eBook
Book Rating : 305/5 ( reviews)

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Book Synopsis Introduction to String Theory by : Sergio Cecotti

Download or read book Introduction to String Theory written by Sergio Cecotti. This book was released on 2023-11-07. Available in PDF, EPUB and Kindle. Book excerpt: Graduate students typically enter into courses on string theory having little to no familiarity with the mathematical background so crucial to the discipline. As such, this book, based on lecture notes, edited and expanded, from the graduate course taught by the author at SISSA and BIMSA, places particular emphasis on said mathematical background. The target audience for the book includes students of both theoretical physics and mathematics. This explains the book’s "strange" style: on the one hand, it is highly didactic and explicit, with a host of examples for the physicists, but, in addition, there are also almost 100 separate technical boxes, appendices, and starred sections, in which matters discussed in the main text are put into a broader mathematical perspective, while deeper and more rigorous points of view (particularly those from the modern era) are presented. The boxes also serve to further shore up the reader’s understanding of the underlying math. In writing this book, the author’s goal was not to achieve any sort of definitive conciseness, opting instead for clarity and "completeness". To this end, several arguments are presented more than once from different viewpoints and in varying contexts.

Conformal Field Theory for Particle Physicists

2023-04-13 Science
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Release : 2023-04-13
Genre : Science
Kind : eBook
Book Rating : 86X/5 ( reviews)

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Book Synopsis Conformal Field Theory for Particle Physicists by : Marc Gillioz

Download or read book Conformal Field Theory for Particle Physicists written by Marc Gillioz. This book was released on 2023-04-13. Available in PDF, EPUB and Kindle. Book excerpt: This book is a set of introductory lecture notes on Conformal Field Theory (CFT). Unlike most existing reviews on the subject, CFT is presented here from the perspective of a unitary quantum field theory in Minkowski space-time. The book starts with a non-perturbative formulation of quantum field theory (Wightman axioms) and then, gradually, focuses on the implications of scale and special conformal symmetry, all the way to the modern conformal bootstrap. This approach includes topics such as subtleties of conformal transformations in Minkowski space-time, the construction of Wightman functions and time-ordered correlators both in position- and momentum-space, unitarity bounds derived from the spectral representation, and the appearance of UV and IR divergences. In each chapter, the reader finds useful exercises to master the subject. This book is meant for graduate students in theoretical physics and for more advanced researchers working in high-energy physics who are not necessarily familiar with the concepts of conformal field theory. Prior knowledge of quantum field theory is needed to master the arguments.

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