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Temporal Multimode Storage of Entangled Photon Pairs

Publié dansPhysical review letters, vol. 117, no. 24, 240506
Date de publication2016
Résumé

Multiplexed quantum memories capable of storing and processing entangled photons are essential for the development of quantum networks. In this context, we demonstrate and certify the simultaneous storage and retrieval of two entangled photons inside a solid-state quantum memory and measure a temporal multimode capacity of ten modes. This is achieved by producing two polarization-entangled pairs from parametric down-conversion and mapping one photon of each pair onto a rare-earth-ion-doped (REID) crystal using the atomic frequency comb (AFC) protocol. We develop a concept of indirect entanglement witnesses, which can be used as Schmidt number witnesses, and we use it to experimentally certify the presence of more than one entangled pair retrieved from the quantum memory. Our work puts forward REID-AFC as a platform compatible with temporal multiplexing of several entangled photon pairs along with a new entanglement certification method, useful for the characterization of multiplexed quantum memories.

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Citation (format ISO)
TIRANOV, Alexey et al. Temporal Multimode Storage of Entangled Photon Pairs. In: Physical review letters, 2016, vol. 117, n° 24, p. 240506. doi: 10.1103/PhysRevLett.117.240506
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ISSN du journal0031-9007
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Création09/12/2016 20:46:00
Première validation09/12/2016 20:46:00
Heure de mise à jour15/03/2023 01:09:08
Changement de statut15/03/2023 01:09:08
Dernière indexation16/01/2024 22:43:17
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