2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84765Classical motion of positronium embedded in a magnetic field is studied, and computation shows the emergence of chaotic orbits. Recent work investigating quantum behavior of this system predicts extremely long lifetimes. Chaos assisted tunneling, however may lead to significant shortening of the lifetime of this system.3 pages,4 figuresPlasma PhysicsComputational Physicstext