Standard Gauge Books

I was given this book as a gift and it is one of my favorite books to just browse through. It is filled with wonderful black and white photos and informative text telling the history of the Hawaiian Railroads on the islands of Hawaii, Maui, Oahu and Kauai. Besides the amazing photographs, there are maps, timetables and sample tickets depicting the whole train culture. I highly reccommend this book if you can even find it because it is now out of print.

McComas and Tuohy put together a great book on the Lionel postwar production. It may not be as detailed as the Greenberg books but for the money it is a great buy. There are plenty of great pictures and detailed information on most of Lionel's postwar production. Volune IV "Lionel 1970-1980" is just as good.

Several of the other reviewers may be correct, about the quality of the text, and the developments of some of its arguments. It does however go beyond such earlier standard texts, like Sakurai's "Advanced Quantum Mechanics", which was just an introductory treatment of relativistic quantum mechanics. Kaku takes you well into the depths of QCD and the [current] Standard Model.

If you are a grad student wanting expertise in this field, an attraction of the book is its extensive problem sets for each chapter. Perhaps more so than the textual exposition! Another reviewer bemoaned the lack of worked out problems or answers. Well, that lack is the norm for many advanced texts. You just have to get used to it. But a more positive way to look at this is to recognise that sometimes knowing that an answer to a problem exists can be valuable in itself.

My background is a Ph.D. (1963) in physics. My dissertation was based on the Mössbauer Effect, and my brief career in research was in areas of electron transport physics. I never had a strong background in high energy physics, and my quantum field theory exposure was mainly QED.

Now that I am retired, I read some physics and looked to Prof. Kaku's book for a survey of current QFT and an introduction to string theory. I have just finished reading Chapter 2, which the Preface states may be skipped by the student who "already understands the basics of group theory . . . or who does not want to delve that deeply into the intricacies of quantum field theory." I certainly did not place myself in that class of student and decided to delve.

The presentation of Chapter 2 leads to the "essential point" (p58) that the Lorentz and Poincaré groups are at the heart of quantum field theory, and "the results of this chapter will be used throughout the book". For that reason, the results should have been developed with great clarity, and I cannot say I found that true.

For example, equations 2.104 which state the Poincaré algebra, as described as showing that translations transform as a vector under the Lorentz group. But the transformation of a vector is defined by eq. 2.91. No connection is anywhere demonsrated between eq. 2.91 and 2.104; nor elsewhere between commutation relations and the transformation of vector fields.

In the discussion of the Casimir operator, the Pauli-Lubanski tensor (p.55), the evaluation in the rest-frame of the space part of the vector (tensor) based on eq. 2.106 leads to "the rotation matrix in three dimensions." But eq. 2.106 is an operator equation, whereas the result (eq. 2.108) is a matrix equation. What is the connection?

I shall plow on with the text in the hope that it will become clearer as I proceed. My feeling at this point is frustration, because I cannot tell for whom this book was written.

This is all around a pretty mediocre, uninspired exposition of quantum field theory. More recent works by Weinberg and Peskin & Schroder, for example, are far more coherent and elegant.

Some of these reviewers need to review the title of the book. This is a "modern introduction to quantum field theory", not some in-depth study with hearty breadth. Duh. For physicist's you people don't have much common sense to speak of.

In my opinion this book is just ok. The breadth of material it covers is good. You can find topics such as critical phenomena and lattice gauge theory among its twenty plus chapters. However, I don't think there is generally much depth. To me the book reads like a catalog of results, I don't see it providing students with any real mathematical or physical insights. The main use I see for it is as a reference.

Page counting isn't a perfect means to determine completeness, but hopefully it does give an impression of the style. A couple of brief examples would be BRST quantization being covered in two pages (almost all equations) and SU(5) in one page. These are just a couple of places where I thought the treatment was so superficial I wondered why it was included at all.

A more detailed example would be the treatment of quantum gravity. It goes from the equivalence principle to Christoffel symbols in five pages, the Robertson-Walker solution is covered in barely more than a page and inflation in two pages. Maybe it's me, but I just don't see people that don't already know this stuff learning it here. Another comment on this chapter concerns the approach to developing classical general relativity. It is based on the properties of covariant vectors and contravariant vectors under coordinate transformation, this is definitely not a modern approach.

The topics it covers are quite interesting, a student with an excellent instructor may find it a useful book. However, I find it hard to imagine many people learning quantum field theory by reading this book. Just off the top of my head I can think of four books that I think most people would find much more helpful in learning quantum field theory: Peskin and Schroeder, Ryder, Weinberg and Zee ("quantum field theory in a nutshell" this isn't so much a traditional text book, but it is very insightful).