2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100317We present the ground state wave functions for systems of one-dimensional interacting fermions. It is shown that these systems undergo phase transitions similar to the Kosterlitz-Thouless one independently of the interaction details. In the limit of an infinitely strong interaction the phase transition turns into the usual second order phase transition in a chiral phase. The temperature of the phase transition is calculated.24 pagesStrongly Correlated Electronstext