Revisiting SU(N ) integrals
Résumé
In this note, I revisit integrals over SU(N) of the form DU U i1j1 · · · U ipjp U † k1l1 · · · U † knln. While the case p = n is well known, it seems that explicit expressions for p = n + N had not appeared in the literature. Similarities and differences, in particular in the large N limit, between the two cases are discussed.
Domaines
Physique mathématique [math-ph]
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