2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176246We consider the problem of (1+1)-dimensional quantum gravity coupled to particles. Working with the canonically reduced Hamiltonian, we obtain its post-Newtonian expansion for two identical particles. We quantize the (1+1)-dimensional Newtonian system first, after which explicit energy corrections to second order in 1/c are obtained. We compute the perturbed wavefunctions and show that the particles are bound less tightly together than in the Newtonian case.19 pages, Latex, 4 figuresGeneral Relativity and Quantum Cosmologytext