Quantum field theory is frequently approached from the perspective of particle physics. This book adopts a more general point of view and includes applications of condensed matter physics. Written by a highly respected writer and researcher, it first develops traditional concepts, including Feynman
โฆ LIBER โฆ
Perturbative Computation in a Deformed Quantum Field Theory
โ Scribed by Bezerra, V. B.; Curado, E. M. F.; Rego-Monteiro, M. A.
- Book ID
- 120474360
- Publisher
- World Scientific Publishing Company
- Year
- 2003
- Tongue
- English
- Weight
- 597 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0217-751X
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We discuss the deformation quantization approach to perturbative quantum field theory. The various forms of Wick's theorem are shown to be a direct consequence of the structure of the star products. The scattering function for a scalar field in interaction with a spacetime-dependent source is derive