Reduction formulas for coherent states

Journal Article · Sun Nov 15 00:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.36.3077· OSTI ID:5509796

Swanson, M S

The Lehmann-Symanzik-Zimmermann reduction formulas consistent with the use of asymptotic coherent states to model external fields are developed for the case that the in-state external field differs from the out-state external field. It is shown for the specific choice of coherent state considered that the reduction formulas deviate from the standard forms presented in textbooks. The coherent states are not reduced directly but instead are incorporated into the perturbative representation of the time-ordered product. An effective potential created by the coherent state is found which self-consistently determines the form of the asymptotic field. An application is made to the case of nonrelativistic quantum electrodynamics in a laser pulse.

• Research Organization: Department of Physics, University of Connecticut, Stamford, Connecticut 06903
• OSTI ID: 5509796
• Journal Information: Phys. Rev. D; (United States), Vol. 36:10
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM ELECTRODYNAMICS
ASYMPTOTIC SOLUTIONS
CROSS SECTIONS
FIELD EQUATIONS
LASERS
MATRIX ELEMENTS
PERTURBATION THEORY
PHOTON-ELECTRON INTERACTIONS
POISSON EQUATION
VACUUM STATES
DIFFERENTIAL EQUATIONS
ELECTRODYNAMICS
EQUATIONS
FIELD THEORIES
INTERACTIONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE INTERACTIONS
PHOTON-LEPTON INTERACTIONS
QUANTUM FIELD THEORY
645400* - High Energy Physics- Field Theory