2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92261We study how to efficiently manipulate and store quantum information between optical fields and atomic ensembles. We show how various non-dissipative transfer schemes can be used to transfer and store quantum states such as squeezed vacuum states or entangled states into the long-lived ground state spins of atomic ensembles.Contribution to Laser Physics special issue in honor of pr Herbert Walther 70's birthdayQuantum Physicstext