Quantum action method in quantum field theory

Journal Article · Thu Feb 01 00:00:00 EST 1979 · Hadronic J.; (United States)

OSTI ID:6521843

Golfand, Y A

A new formalism in quantum field theory in which the basic quantity is the quantum action is worked out. Such quantum action is a generating functional of one particle irreducible vertices, and it is a straightforward generalization of the conventional classical action to a quantum field theoretical setting in such a way to preserve classical symmetries. Nonlinear field equations are built from such a quantum action. The formalism is applied to the symmetric Yang-Mills theory with spontaneous symmetry breaking and it is shown to lead to Ward identies without nonphysical quantities. A number of additional aspects are then considered, such as the construction of the S-matrix and the study of its invariance, certain perturbative calculations in the quantum electodynamics, and the computation of the finite solution of the electron vertex part from the Ward identities.

• OSTI ID: 6521843
• Journal Information: Hadronic J.; (United States), Vol. 2:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM FIELD THEORY
VERTEX FUNCTIONS
FUNCTIONALS
INVARIANCE PRINCIPLES
NONLINEAR PROBLEMS
PERTURBATION THEORY
QUANTUM ELECTRODYNAMICS
S MATRIX
SYMMETRY
WARD IDENTITY
YANG-MILLS THEORY
ELECTRODYNAMICS
FIELD THEORIES
FUNCTIONS
MATRICES
645400* - High Energy Physics- Field Theory