2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49955We review recent developments in non-perturbative field theory using modal field methods. We discuss Monte Carlo results as well as a new diagonalization technique known as the quasi-sparse eigenvector method.7 pages, 1 figure, uses ws-p8-50x6-00.cls (included in tar file), to appear in the proceedings of the Workshop on Light-Cone QCD and Nonperturbative Hadron Physics, Adelaide, December 1999High Energy Physics - TheoryHigh Energy Physics - LatticeHigh Energy Physics - PhenomenologyModal field theory and quasi-sparse eigenvector diagonalizationtext