2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91979In this letter the explicit form of evolution operator of three atoms Tavis-Cummings model is given, which is a generalization of the paper quant-ph/0403008.Latex file, 9 pages. misprints correctedQuantum PhysicsMathematical Physicstext