Schwinger's quantum action principle [electronic resource] : from Dirac's formulation through Feynman's path integrals, the Schwinger-Keldysh method, quantum field theory, to source theory / Kimball A. Milton.
2015
QC174.45
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Title
Schwinger's quantum action principle [electronic resource] : from Dirac's formulation through Feynman's path integrals, the Schwinger-Keldysh method, quantum field theory, to source theory / Kimball A. Milton.
Author
Milton, K. A., author.
ISBN
9783319201283 electronic book
331920128X electronic book
9783319201276
331920128X electronic book
9783319201276
Published
Cham : Springer, 2015.
Language
English
Description
1 online resource (viii, 116 pages) : illustrations.
Call Number
QC174.45
Dewey Decimal Classification
530.14/3
Summary
Starting from the earlier notions of stationary action principles, these tutorial notes shows how Schwinger's Quantum Action Principle descended from Dirac's formulation, which independently led Feynman to his path-integral formulation of quantum mechanics. Part I brings out in more detail the connection between the two formulations, and applications are discussed. Then, the Keldysh-Schwinger time-cycle method of extracting matrix elements is described. Part II will discuss the variational formulation of quantum electrodynamics and the development of source theory.
Bibliography, etc. Note
Includes bibliographical references.
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Access limited to authorized users.
Source of Description
Online resource; title from PDF title page (SpringerLink, viewed June 17, 2015).
Series
SpringerBriefs in physics.
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Online Access
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Table of Contents
Historical introduction
Review of classical action principles
Classical field theory
electrodynamics
Quantum Action Principle
Time-cycle or Schwinger-keldysh Formulation
Relativistic Theory of Fields
Nonrelativistic Source theory
Concluding remarks.
Review of classical action principles
Classical field theory
electrodynamics
Quantum Action Principle
Time-cycle or Schwinger-keldysh Formulation
Relativistic Theory of Fields
Nonrelativistic Source theory
Concluding remarks.