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arXiv · hep-ph/9412315

Equivalence of Light-Front and Covariant Field Theory

N. E. Ligterink·B. L. G. Bakker
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Abstract

In this paper we discuss the relation between the standard covariant quantum field theory and light-front field theory. We define covariant theory by its Feynman diagrams, whereas light-front field theory is defined in terms of light-cone time-ordered diagrams. A general algorithm is proposed that produces the latter from any Feynman diagram. The procedure is illustrated in several cases. Technical problems that occur in the light-front formulation and have no counterpart in the covariant formulation are identified and solved.

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N. E. Ligterink, B. L. G. Bakker. 1994-12-19. Equivalence of Light-Front and Covariant Field Theory. https://doi.org/10.1103/physrevd.52.5954

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