using Arpack
include("ho_basis.jl")

Λ = 0
m = 1.0
V_of_r(r) = -2 * exp(-r^2 / 4)

E_max = 40
μω_global = 0.3

H = get_3b_H_matrix(src, V_of_r, μω_global, E_max, Λ, m)

@time "Eigenvalues" evals, _ = eigs(H, nev=3, ncv=30, which=:SR, maxiter=5000, tol=1e-5, ritzvec=false, check=1)
display(evals)