Effective action for composite operators

1974/10/15 by John M. Cornwall, R. Jackiw, E. T. Tomboulis · 68 citations
Mathematics · Engineering · #Numerical methods for differential equations #Electromagnetic Simulation and Numerical Methods #Advanced Numerical Methods in Computational Mathematics

paper · doi:10.1103/physrevd.10.2428

openalex publication_date 1974/10/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

An effective action and potential for composite operators is obtained. The formalism is used to analyze, by variational techniques, dynamical symmetry breaking and coherent solutions to field theory. A Rayleigh-Ritz procedure is introduced which replaces arbitrary variations with parametric variations. Previously unsolved nonlinear equations become, in the Rayleigh-Ritz approximation, solvable algebraic equations.

Citations

• Stationary Entropy Principle and Renormalization in Normal and Superfluid Systems. I. Algebraic Formulation
• Radiative Corrections as the Origin of Spontaneous Symmetry Breaking
• Stationary Entropy Principle and Renormalization in Normal and Superfluid Systems. II. Diagrammatic Formulation

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