Entanglement-storage units

Entanglement Storage Units

Entanglement represents the manifestation of correlations without a classical counterpart and it is regarded as the necessary ingredient at the basis of the power of quantum information processing. Indeed quantum information applications as teleportation, quantum criptography or quantum computers rely on entanglement as a crucial resource [1]. Within the current state-of-art, promising candidat...

LOCC Conversion via Entanglement Storage

When two distant parties would like to perform some quantum protocol using a specific suitable entangled state, those parties need to prepare the entangled state by LOCC with high accuracy. However, it can be thought that the parties can only generate an entangled state different from the desired one by their quantum channel. To overcome the problem of state preparation, they can perform LOCC c...

Holographic storage of biphoton entanglement.

Coherent and reversible storage of multiphoton entanglement with a multimode quantum memory is essential for scalable all-optical quantum information processing. Although a single photon has been successfully stored in different quantum systems, storage of multiphoton entanglement remains challenging because of the critical requirement for coherent control of the photonic entanglement source, m...

Entanglement storage in atomic ensembles

– We propose to entangle macroscopic atomic ensembles in cavity using EPRcorrelated beams. We show how the field entanglement can be almost perfectly mapped onto the long-lived atomic spins associated with the ground states of the ensembles, and how it can be retrieved in the fields exiting the cavities after a variable storage time. Such a continuous variable quantum memory is of interest for ...

Antiferromagnetic/ferromagnetic nanostructures for multidigit storage units