A natural extension of the conformal Lorentz group in a field theory context

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Abstract

In this paper a finite dimensional unital associative algebra is presented, and its group of algebra automorphisms is detailed. The studied algebra can physically be understood as the creation operator algebra in a formal quantum field theory at fixed momentum for a spin 1/2 particle along with its antiparticle. It is shown that the essential part of the corresponding automorphism group can naturally be related to the conformal Lorentz group. In addition, the non-semisimple part of the automorphism group can be understood as "dressing" of the pure one-particle states. The studied mathematical structure may help in constructing quantum field theories in a non-perturbative manner. In addition, it provides a simple example of circumventing Coleman-Mandula theorem using non-semisimple groups, without SUSY.

Original languageEnglish
Article number1645041
JournalInternational Journal of Modern Physics A
Volume31
Issue number28-29
DOIs
Publication statusPublished - Oct 20 2016

Keywords

  • Algebra automorphism
  • Levi decomposition
  • conformal Lorentz group extension
  • quantum field theory

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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