Solution of the closed-time-path formalism of quantum field theory for multiparticle states

Journal Article · Thu Sep 01 00:00:00 EDT 1988 · Hadronic J.; (United States)

OSTI ID:6319572

Manoukian, E B

We obtain the functional solution of the close-time-path formalism of quantum field theory for multiparticle states. This permits one to study systematically the expectation of observables not just in the vacuum state, but also in multiparticle states. A particular example of this is the transition probability for any scattering process, thus avoiding the preceding computations and considerations of the corresponding amplitudes. The basic ingredients in our derivation are the quantum action principle followed by a systematic use of a unitarity expansion. The formalism is then applied to non-Abelian gauge theories.

• Research Organization: Department of National Defence, Royal Military College of Canada, Kingston, Ontario K7K 5L0, Canada
• OSTI ID: 6319572
• Journal Information: Hadronic J.; (United States), Vol. 11:5
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM FIELD THEORY
SCHWINGER FUNCTIONAL EQUATIONS
GAUGE INVARIANCE
LAGRANGIAN FUNCTION
MANY-BODY PROBLEM
SCALAR FIELDS
SCATTERING
UNITARITY
DIFFERENTIAL EQUATIONS
EQUATIONS
FIELD THEORIES
FUNCTIONS
INVARIANCE PRINCIPLES
645400* - High Energy Physics- Field Theory