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Schwinger's Quantum Action Principle: From Dirac’s Formulation Through Feynman’s Path Integrals, the Schwinger-Keldysh Method, Quantum Field Theory, to Source Theory

Schwinger's Quantum Action Principle

From Dirac’s Formulation Through Feynman’s Path Integrals, the Schwinger-Keldysh Method, Quantum Field Theory, to Source Theory

Starting from the earlier notions of stationary action principles, these tutorial notes shows how...

Quantum Field Theory Under the Influence of External Conditions (QFEXT09): Devoted to the Centenary of H B G Casimir - Proceedings of the Ninth Conference

Quantum Field Theory Under the Influence of External Conditions (QFEXT09)

Devoted to the Centenary of H B G Casimir - Proceedings of the Ninth Conference

QFEXT is the leading international conference held every two years, highlighting progress in quantum...