Quantum Field Theory 2nd Edition by Lewis H. Ryder | (PDF) Free Download

Description

This book is a modern pedagogic introduction to the ideas and techniques of quantum field theory. After a brief overview of particle physics and a survey of relativistic wave equations and Lagrangian methods, the quantum theory of scalar and spinor fields, and then of gauge fields, is developed. The emphasis throughout is on functional methods, which have played a large part in modern field theory. The book concludes with a brief survey of ‘topological’ objects in field theory and, new to this edition, a chapter devoted to supersymmetry.

User’s Reviews

Reviews from Amazon users which were colected at the time this book was published on the website:

⭐This book does not mean to provide a comprehensive introduction to modern QFT, rather serves as an easy entry point to this vast subject. The canonical quantization is presented in a simply way and followed by a good path integral chapter on feynman diagrams and perturbative formalism. The chapter on non-Abelian field and its geometric treatment are very nice. It is unfortunate that the book does not have any problems for students to solve, it’s a drawback, but no big deal as nobody would use only one book to learn QFT, its easy to find good problems from other textbooks.

⭐As many reviewers correctly observe, quantum field theory can hardly be learned from one book. This is, of course, true of many topics in science and engineering! Nevertheless, Ryder’s book had given me a satisfactory start in my quest to learn QTF. Ryder uses the Feynman path integral approach instead of Canonical quantization as the foundation for QTF. Ryder provides a good review of special relativity, four vectors, the Minkowski metric tensor, and covariance. His notation is easy to understand for those just beginning QFT–as he retains the presence of c and h bar in his equations. Equations and the steps in their derivation are also laid out in sufficient detail. Unfortunately, this particular variant of equation intensive exposition becomes quite overwhelming by the middle of the book. Even the QTF novice begins to tire of the proliferation of c’s and h bars, and the constant press of equations seems to force out the narrative that might render these mathematical expressions meaningful to the reader.I found the Feynman integral approach easy to understand, but was confused by the author’s attempt to use this approach to explain Feynman diagrams. As in many advanced treatments, there are moments where troubling errors in the editing of text particularly confuse and vex the reader. There are errors in the eigenvectors to the Dirac equation (i.e. the plane wave spinors, p.50 Eqs. 2.137 and 2.138) that can be remedied by looking to the analogous treatment by Schiff

⭐(p.476, Eq.52.16). Ryder’s derivation of the Dirac equation, although fairly intuitive, lost me in his tracing of the relationship between 2D unitary transformations and 3D rotations (pp.33-34, Eqs.2.39-2.54). For me, this gap in this argument is remedied by reference to the discussion of this topic by Merzbacher

⭐(pp.266-7, Eqs.12.35-12.41).The calculation of the free particle propagator (pp.161-162, 5.16-5.19;pp.180-180, 5A.3-5A.4) is more easily preformed and understood if Fourier transforms are used address the convolution operation, as may be gleaned from texts such as Bracewell

⭐. Overall, this book offers a good beginning, but after making my way halfway through the book, I found that Peskin and Shroeder’s book

⭐offered me a better chance of making my way somewhat deeper into QTF.Despite the limitations of Ryder, I feel compelled to give it five stars. The more deeply I delve into QFT, the more I appreciate Ryder. I find myself going back to it again and again. Ryder introduces so many topics in an way that is accessible to the non-expert, that it now seems to me to be almost indispensable.

⭐I used this book as a reference in a QFT graduate class where Peskin and Schraeder was the primary text. It is a bit dated now, but still very useful with a clear exposition.

⭐Overally the book is fine but the cover of the book had some scratch … never mind, the content is excellent …

⭐One of the best books on QFT for beginners. Clear presentation, with emphasis on the physics and practical tools.

⭐OK !

⭐Great

⭐Loved it. Very nice introduction.

⭐Good book

⭐For someone who is getting into grips with Quantum field theory. All the books by Lewis Ryder has been very well written, and it explain complex mathematical concepts very lucidly. Highly recommended for all who want to read quantum field theory and enjoy it.

⭐This is an amazing book. It can be used to as a first book to learn Quantum Field Theory.It is easy and one can read it by themselves.The book covers a lot of basic easy chapters to build the concept. Those are accompanied by texts that give heavy insights. The book does a lot of algebra as well.The only fault is that it contains no problems. However, to learn QFT for the first time, this book serves really well.

⭐Value for money

⭐Greatly recommended for students with basic knowledge in QM. Should be used more often for a sound understanding in QFT

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