An Introduction To Quantum Field Theory

Very good pages with clear texts, Excellent hardcover binding

I want to cancel the order,,

Es un libro didáctico y profundo aunque sea de introducción. Trata en profundidad la te normalización con todos sus problemas y soluciones. En profundidad las integrales de camino e integrales funcionales. En profundidad las teorías gauges, electrodinámica cuántica… le falta cromodinámica en profundidad porque eso requerirá otro texto aparte, lógicamente. Muy buen libro para profundizar luego en textos o revistas mas técnicas. Muchas deducciones paso a paso. No vienen ejemplos resueltos. Sí propuestos. Es un libro para tener en una biblioteca propia

It's Peskin & Schroeder, plain and simple. It's the standard book and it's the standard book for a reason.

und das Buch ist immer noch DAS Standard-Nachschlagewerk auf meinem Schreibtisch. Sowas nenne ich mal eine lohnende Investition :-) Als ich es neu gekauft hatte, studierte ich noch und war gerade bei der Vorlesung zur relativistischen Quantenmechanik angelangt. Damals habe ich das Buch als sehr schwere Kost empfunden - als Einsteigerlehrbuch ist es also nicht ideal, da gibt es bessere! Aber so muehsam die Lektuere war, so sehr hat mich das Buch fasziniert, der Informationsgehalt ist einfach unglaublich. Kein Wunder, dass dieses Buch eins der absoluten Standardwerke auf dem Schreibtisch eines jeden Teilchenphysikers ist.

The book was in a good state but the most important thing was the content, the understanding from the basic understanding of Feyman Diagrams, Loop integrals and the mathematics behind canonical quantization was given in a way that any person with the enough basis can understand and solve the exercises that the books has. Without doubt a really good book for an introduction to Quantum Field Theory.

Peskin and Schroeder's book seems to be the standard text for courses in quantum field theory these days. Although somewhat intimidating for the novice, the reader seasoned by reading a good portion of Ryder's book Quantum Field Theory will find himself fairly comfortable. The advantages of the compact (1, sigma) notation used by the authors for Dirac spinors and gamma matrices, although not as immediately transparent as the expressions favored by Ryder, soon become familiar. The use of a more compact notion gives more space for narrative exposition. One discussion that I found particularly helpful in P&S is the explanation for the sign of time dependence for the field operator psi(x) on p.54 using equations (3.91) and (3.92). Because psi(x) is an operator and not a simple wave function, we have to switch to the Heisenberg picture in order for it to have time dependence. In the Heisenberg picture the annihilation operator has time dependence a(p)exp(-iE(p)t). It is then clear that the annihilation side of psi(x) must be proportional to a(p)exp(-p.x), since p.x=(Et-P.r) using Ryder's choice of metric and space time coordinates (with P as the three momentum, r as the three position [x,y,z], and E as the energy). Perhaps this seems like a minor point, but the choice of sign for the exponential in a(p)exp(-p.x) seemed to me to be purely arbitrary before reading this section in P&S. As you might expect, however, some points that should either be given greater emphasis--or explained in more detail are sometimes glossed over. Happily, a good supplement for this text exists in the lecture notes of Cambridge University's David Tong. Tong's notes provide a better understanding of the ideas behind the rotation of the contour slightly away from the real axis (p.95) in order to insure that the integral for the propagator converges. Tong also adds to the authors' discussion of normal ordering and Wick's Theorem. Peskin and Schroeder also provide a very readable discussion of the Higg's model in Chapter 20. Reading this chapter has given me the best appreciation for QFT that I have gleaned thus far.