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Название: Fields. Quantum Field Theory [QED]
Автор: Siegel W.
In this Outline we give a brief description of each item listed in the Contents.While the Contents and Index are quick ways to search, or learn the general layout of the book, the Outline gives more detail for the uninitiated.
Relativistic quantum mechanics and classical ﬁeld theory. Poincar´e group = special relativity. Enlarged spacetime symmetries: conformal and supersymmetry. Equations of motion and actions for particles and ﬁelds/wave functions. Internal symmetries: global (classifying particles), local (ﬁeld interactions).
Quantum aspects of ﬁeld theory. Perturbation theory: expansions in loops, helicity, and internal symmetry. Although some have conjectured that nonperturbative approaches might solve renormalization diﬃculties found in perturbation, all evidence indicates these problems worsen instead in complete theory.
General spins. Spin 2 must be included in any complete theory of nature. Higher spins are observed experimentally for bound states, but may be required also as fundamental ﬁelds.