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Quantum field theory : Feynman path integrals and diagrammatic techniques in condensed matter / Lukong Cornelius Fai.

By: Fai, Lukong Cornelius [author.].
Material type: materialTypeLabelBookPublisher: Boca Raton, FL : CRC Press, Taylor & Francis Group, [2019]Copyright date: ©2019Description: 1 online resource.Content type: text Media type: computer Carrier type: online resourceISBN: 9780429196942; 0429196946; 9780429587474; 0429587473; 9780429591358; 0429591357; 9780429589416; 0429589417.Subject(s): Quantum field theory | Feynman integrals | Feynman diagrams | Condensed matter | SCIENCE / Energy | SCIENCE / Physics / GeneralDDC classification: 530.14/3 Online resources: Taylor & Francis | OCLC metadata license agreement
Contents:
Symmetry requirements in quantum field theory -- Coherent states -- Non-interacting particles -- Perturbation theory and Feynman diagrams -- (Anti) symmetrized vertices -- The random phase approximation (RPA): screened interactions and plasmos -- Theory of phase transitions and critical phenomena -- Weakly interacting Bose gas -- Path integral formalism for non-ideal Bose gas -- Superconductivity theory -- Path integral approach to the BCS theory: spin-imbalanced Fermi gas -- Green's functions averages over impurities -- Classical and quantum theory of magnetism -- Spin dynamics. dynamical response function -- Itinerant ferromagnetism -- Nonequilibrium quantum field theory.
Summary: "This book explores quantum field theory using the Feynman functional and diagrammatic techniques as foundations to apply Quantum Field Theory to a broad range of topics in physics. This book will be of interest not only to condensed matter physicists but physicists in a range of disciplines as the techniques explored apply to high-energy as well as soft matter physics"-- Provided by publisher.
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Symmetry requirements in quantum field theory -- Coherent states -- Non-interacting particles -- Perturbation theory and Feynman diagrams -- (Anti) symmetrized vertices -- The random phase approximation (RPA): screened interactions and plasmos -- Theory of phase transitions and critical phenomena -- Weakly interacting Bose gas -- Path integral formalism for non-ideal Bose gas -- Superconductivity theory -- Path integral approach to the BCS theory: spin-imbalanced Fermi gas -- Green's functions averages over impurities -- Classical and quantum theory of magnetism -- Spin dynamics. dynamical response function -- Itinerant ferromagnetism -- Nonequilibrium quantum field theory.

"This book explores quantum field theory using the Feynman functional and diagrammatic techniques as foundations to apply Quantum Field Theory to a broad range of topics in physics. This book will be of interest not only to condensed matter physicists but physicists in a range of disciplines as the techniques explored apply to high-energy as well as soft matter physics"-- Provided by publisher.

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