2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28182The ground state of the two-leg Heisenberg ladder is identified as an RVB type spin liquid, which is generated by Gutzwiller projection of tight-binding bands with flux pi per plaquet. Explicit trial wave functions for the magnon and hole excitations are formulated in terms of spinons and holons.4 pages, revtexStrongly Correlated Electronstext