English

Useful relations among the generators in the defining and adjoint representations of SU(N)

Mathematical Physics 2021-01-22 v2 High Energy Physics - Phenomenology math.MP

Abstract

There are numerous relations among the generators in the defining and adjoint representations of SU(N). These include Casimir operators, formulae for traces of products of generators, etc. Due to the existence of the completely symmetric tensor dabcd_{abc} that arises in the study of the SU(N) Lie algebra, one can also consider relations that involve the adjoint representation matrix, (Da)bc=dabc(D^a)_{bc}=d_{abc}. In this review, we summarize many useful relations satisfied by the defining and adjoint representation matrices of SU(N). A few relations special to the case of N=3 are highlighted.

Keywords

Cite

@article{arxiv.1912.13302,
  title  = {Useful relations among the generators in the defining and adjoint representations of SU(N)},
  author = {Howard E. Haber},
  journal= {arXiv preprint arXiv:1912.13302},
  year   = {2021}
}

Comments

11 pages, a collection of useful formulae from a variety of sources; version 2 matches the published version