《Introduction to Advanced Field Theory》求取 ⇩

1.Introduction of Fields into Elementary Particle Theory1

2.Interpolating Field and Asymptotic Condition7

3.Digression on Free Field Quantization13

4.The Contraction Scheme16

5.Green’s Functions27

6.The Inhomogeneous Wave Equation33

7.Construction of the Interpolating Field from the S Operator38

8.Some Comments on Lagrangians for Coupled Fields44

9.Lehmann Representation of the Two-Point Functions50

9.1.The Lehmann representation50

9.2.Comments and applications55

9.3.Alternative proof of the representation59

10.LSZ Theorem on the Vertex Function63

10.1.Introduction63

10.2.Formulation of the problem64

10.3.Proof71

10.4.Comments76

11.Ghosts in Perturbation Theory78

12.The Lee Model and Negative Probabilities85

12.1.Introduction85

12.2.Renormalized formalism and the ghost96

12.3.Indefinite metric105

12.4.Indefinite metric and asymptotic condition111

13.Infinite Number of Degrees of Freedom117

13.1.Introduction117

13.2.Neutral scalar field with fixed c-number point sources119

13.3.Inequivalent representations of the commutation rules126

13.4.Comments and examples130

14.Haag’s Theorem140

14.1.Introduction140

14.2.Wightman functions141

14.3.Consequences of the theorem of Hall and Wightman148

14.4.Haag’s theorem152

References161