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Lectures on Quantum Field Theory 2nd Edition by Ashok Das 9789811220869 9811220867

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Lectures on Quantum Field Theory 2nd Edition Ashok Das Digital Instant Download

Author(s): Ashok Das
ISBN(s): 9789811220869, 9811220867
Edition: 2
File Details: PDF, 7.96 MB
Year: 2020
Language: english
SKU: EB-22062236 Category: Tag:

Lectures on Quantum Field Theory 2nd Edition by Ashok Das – Ebook PDF Instant Download/Delivery: 9789811220869, 9811220867

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Product details:

ISBN 10: 9811220867

ISBN 13: 9789811220869

Author: Ashok Das

This book comprises the lectures of a two-semester course on quantum field theory, presented in a quite informal and personal manner. The course starts with relativistic one-particle systems, and develops the basics of quantum field theory with an analysis on the representations of the Poincaré group. Canonical quantization is carried out for scalar, fermion, Abelian and non-Abelian gauge theories. Covariant quantization of gauge theories is also carried out with a detailed description of the BRST symmetry. The Higgs phenomenon and the standard model of electroweak interactions are also developed systematically. Regularization and (BPHZ) renormalization of field theories as well as gauge theories are discussed in detail, leading to a derivation of the renormalization group equation. In addition, two chapters — one on the Dirac quantization of constrained systems and another on discrete symmetries — are included for completeness, although these are not covered in the two-semester course.

This second edition includes two new chapters, one on Nielsen identities and the other on basics of global supersymmetry. It also includes two appendices, one on fermions in arbitrary dimensions and the other on gauge invariant potentials and the Fock-Schwinger gauge.

Readership: Graduate students and researchers in theoretical physics.

Table of contents:

1 Relativistic equations

2 Solutions of the Dirac equation

3 Properties of the Dirac equation

4 Representations of Lorentz and Poincaré groups

5 Free Klein-Gordon field theory

6 Self-interacting scalar field theory

7 Complex scalar field theory

8 Dirac field theory

9 Maxwell field theory

10 Dirac method for constrained systems

11 Discrete symmetries

12 Yang-Mills theory

13 BRST invariance and its consequences

14 Higgs phenomenon and the standard model

15 Regularization of Feynman diagrams

16 Renormalization theory

17 Renormalization group and equation

18 Nielsen identities and gauge independence of physical parameters

19 Basics of global supersymmetry

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