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Revisiting SU(N) integrals

Mathematical Physics 2016-12-21 v1 High Energy Physics - Theory math.MP

Abstract

In this note, I revisit integrals over \SU(N)\SU(N) of the form DUUi1j1Uipjp\Udk1l1\Udknln \int DU\, U_{i_1j_1}\cdots U_{i_pj_p}\Ud_{k_1l_1}\cdots \Ud_{k_nl_n}. While the case p=np=n is well known, it seems that explicit expressions for p=n+Np=n+N had not appeared in the literature. Similarities and differences, in particular in the large NN limit, between the two cases are discussed

Cite

@article{arxiv.1611.00236,
  title  = {Revisiting SU(N) integrals},
  author = {Jean-Bernard Zuber},
  journal= {arXiv preprint arXiv:1611.00236},
  year   = {2016}
}

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R2 v1 2026-06-22T16:38:43.191Z