2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126283Determining whether a quantum state is separable or entangled is a problem of fundamental importance in quantum information science. This is a brief review in which we consider the problem for states in infinite dimensional Hilbert spaces. We show how the problem becomes tractable for a class of Gaussian states.8 pagesComputational ComplexityQuantum Physicstext