2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97455Concerning state estimation, we will compare two cases. In one case we cannot use the quantum correlations between samples. In the other case, we can use them. In addition, under the later case, we will propose a method which simultaneously measures the complex amplitude and the expected photon number for the displaced thermal states.LateX, 6 pages. It is submitted to QCM'98 proceedingsQuantum Physicstext