The Full Laplace-Beltrami operator on U(N) and SU(N)

Ole Trinhammer, Gestur Olafsson

Research output: Working paperResearch

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Abstract

The Laplacian on the Lie groups U(N) and SU(N) is given in a parametrized edition for practical purposes. The radial part is often seen in work on lattice gauge theory, but here is derived also the off-diagonal part which in SU(3) and U(3) is expressed via the well known Gell-Mann matrices but with a more easily memorized notation. Relations to I, U and V spin are also shown.
Original languageEnglish
Number of pages11
Publication statusPublished - 1999
Externally publishedYes

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