Perturbation Theory in Light-Cone Quantization
نویسندگان
چکیده
منابع مشابه
Perturbation Theory In Light-Cone Quantization* ALEX LANGNAU AND STANLEY
A new algorithm for the automatic computa.tion of Feynman diagram amplitudes in quantum field theory is presented. Once the topology of a diagram is defined, the algorithm constructs all corresponding light-cone time-orderings. We explore the method for twoand three-loop calculations in QED. Submitted to Journal of Computational Physics * Supported in part by the Department of energy under cont...
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The canonical front form Hamiltonian for non-Abelian SU(N) gauge theory in 3+1 dimensions is mapped on an effective Hamiltonian which acts only in the Fock space of one quark and one antiquark. The approach is non-perturbative and exact. It is based on Discretized Light-Cone Quantization and the Method of Iterated Resolvents. The method resums the diagrams of perturbation theory to all orders i...
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Two approaches to nonperturbative renormalization are discussed for theories quantized on the light cone. One is tailored specifically to a calculation of the dressed-electron state in quantum electrodynamics, where an invariantmass cutoff is used as a regulator and a Tamm–Dancoff truncation is made to include no more than two photons. The other approach is based on Pauli– Villars regulators an...
متن کاملLight–Cone Quantization: Foundations and Applications
These lecture notes review the foundations and some applications of light– cone quantization. First I explain how to choose a time in special relativity. Inclusion of Poincaré invariance naturally leads to Dirac’s forms of relativistic dynamics. Among these, the front form, being the basis for light–cone quantization, is my main focus. I explain a few of its peculiar features such as boost and ...
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 1993
ISSN: 0021-9991
DOI: 10.1006/jcph.1993.1201