PHOTON ECHO QUANTUM MEMORY AND METHOD

摘要

A quantum memory and method are proposed. The quantum memory includes an ensemble of atoms embedded in a storage medium and at least one light source for emitting towards the storage medium first, second and third light pulses, the first light pulse carrying information to be stored. The at least one light source is adapted for emitting second and third light pulses which are such that a photon echo substantially carrying information stored by the first light pulse is emitted by the ensemble of atoms after emission of the third light pulse.