2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91565Making use of the quantum correlators associated with the Maxwell field vacuum distorted by the presence of plane parallel material surfaces we derive the Casimir-Polder interaction in the presence of plane parallel conducting walls and in the presence of a conducting wall and a magnetically permeable one.Five pages, no figures simple latex fileQuantum Physicstext