Light-front limit in a rest frame

Covariant perturbation theory is formulated using a new set of space-time coordinates. This corresponds to a quantization on any flat spacelike surface in Minkowski space. One limit of the theory reproduces the usual instant (equal-time) dynamics, whereas a different limit gives light-front dynamics...

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Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 1991-07, Vol.44 (2), p.433-440
Main Author: SAWICKI, M
Format: Article
Language:English
Subjects:
645400 - High Energy Physics- Field Theory
AMPLITUDES
Astronomy
BOUND STATE
DIAGRAMS
Earth, ocean, space
ELECTRODYNAMICS
Exact sciences and technology
FEYNMAN DIAGRAM
FIELD THEORIES
Luminosities, magnitudes, effective temperatures, color, and spectral classification
MANY-BODY PROBLEM
MATHEMATICAL SPACE
MINKOWSKI SPACE
PERTURBATION THEORY
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROPAGATOR
QUANTIZATION
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SCATTERING AMPLITUDES
SPACE
SPACE-TIME
Stars
Stellar characteristics and properties
TWO-BODY PROBLEM
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Summary:Covariant perturbation theory is formulated using a new set of space-time coordinates. This corresponds to a quantization on any flat spacelike surface in Minkowski space. One limit of the theory reproduces the usual instant (equal-time) dynamics, whereas a different limit gives light-front dynamics. Neither the infinite-momentum frame nor infinite momenta are involved. In particular a smooth parametric transformation from the instant to light-front picture is given for a system at rest.
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.44.433