2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205778Quantum decoherence, the evolution of pure states into mixed states, may be a feature of quantum gravity. In this paper, we show how these effects can be modelled for atmospheric neutrinos and illustrate how the standard oscillation picture is modified. We examine how neutrino telescopes, such as ANTARES, are able to place upper bounds on these quantum decoherence effects.Discussion of event spectra added; version accepted for publication in Astroparticle Physics; 38 pages, 15 figures, uses elsart.clsAstrophysicsHigh Energy Physics - Phenomenologytext