Am höchsten bewertete positive Rezension
Less enthusiastic now
am 17. Dezember 2016
I am less enthusiastic about Lewis Ryder's book on QFT than I was about two decades ago (see, my review published in Foundations of Physics, 28 (1998) 527-529.). The reason is that there are several conceptual errors that Ryder's book continues to propagate. The first is the derivation of Dirac equation, and since I have explained it in my book review I direct the reader to that reference, and also to a very nice article by Fabian Gaioli and Edgardo Garcia Alvarez in Am. J. Phys. 63 (1995) 177-178. The second problem is that the Dirac quantum field introduced by Ryder is in conflict with the derivation of the same object in Steven Weinberg's classic on the same subject. Several research papers hint at that quite explicitly, see, for example, D. V. Ahluwalia, Cheng-Yang Lee, and D. Schritt, Phys. Rev. D 83, 065017 (2011) and Phys. Lett. B 687, 248–252 (2010).
The best books, in my opinion, on the subject are: by Steven Weinberg and by Bogolyubov and colleagues. These books demand a couple of years of self study, but I see no escape from that task -- if you are a serious student of the subject. These will take you on a path to become a physicist rather than a technician of Physics.