Numerical solution for the petal graph

[tobiasosborne]

The simplest nontrivial gauge theory is for the petal graph with one vertex and n loops (petals). This model is simple enough that standard numerics, e.g., DMRG, should be able to give reasonable results for the Kogut-Susskind model on this graph. These results could then be directly compared with the interpolation ansatz and its refinements. To warm up one could study the U(1) case first and then look at SU(2) later.