English

Discrete Nahm Equations for SU(N) Hyperbolic Monopoles

Mathematical Physics 2015-12-08 v3 High Energy Physics - Theory math.MP Exactly Solvable and Integrable Systems

Abstract

In a paper of Braam and Austin, SU(2)\text{SU}(2) magnetic monopoles in hyperbolic space H3H^{3} were shown to be the same as solutions to matrix-valued difference equations called the discrete Nahm equations. Here, I discover the (N1)(N-1)-interval discrete Nahm equations and show that their solutions are equivalent to SU(N)\text{SU}(N) hyperbolic monopoles. These discrete time evolution equations on an interval feature a jump in matrix dimensions at certain points in the evolution, which are given by the mass data of the corresponding monopole. I prove the correspondence with higher rank hyperbolic monopoles using localisation and Chern characters. I then prove that the monopole is determined up to gauge transformations by its "holographic image" of U(1)\text{U}(1) fields at the asymptotic boundary of H3H^{3}.

Cite

@article{arxiv.1506.08736,
  title  = {Discrete Nahm Equations for SU(N) Hyperbolic Monopoles},
  author = {Joseph Y C Chan},
  journal= {arXiv preprint arXiv:1506.08736},
  year   = {2015}
}

Comments

27 pages, 2 figures. Submitted. v2: Changes to presentation and remarks have been moved to a final remarks section; no change in content v3: abstract tweaked; mass numbers -p have absorbed their sign to become p

R2 v1 2026-06-22T10:02:21.428Z