2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35569There are several regimes in chaotic inflationary cosmology where some part of the system is classical and some other quantum. I describe how to deal with such systems and how to disentangle their dynamics into classical behaviour and quantum corrections. I also discuss the conditions for quantum corrections to be small.General Relativity and Quantum CosmologyHigh Energy Physics - TheoryClassical and Quantum in Cosmologytext