2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/212058Fidelity plays a key role in quantum information and communication theory. Fidelity can be interpreted as the probability that a decoded message possesses the same information content as the message prior to coding and transmission. In this paper, we give a formula of Bures fidelity for displaced squeezed thermal states directly by the displacement and squeezing parameters and birefly discuss how the results can apply to quantum information theory.10 pages with RevTex requiredQuantum PhysicsAstrophysicstext