en
Scientific article
Open access
English

Multimode quantum memory based on atomic frequency combs

Publication date2009
Abstract

An efficient multimode quantum memory is a crucial resource for long-distance quantum communication based on quantum repeaters. We propose a quantum memory based on spectral shaping of an inhomogeneously broadened optical transition into an atomic frequency comb (AFC). The spectral width of the AFC allows efficient storage of multiple temporal modes without the need to increase the absorption depth of the storage material, in contrast to previously known quantum memories. Efficient readout is possible thanks to rephasing of the atomic dipoles due to the AFC structure. Long-time storage and on-demand readout is achieved by use of spin states in a lambda-type configuration. We show that an AFC quantum memory realized in solids doped with rare-earth-metal ions could store hundreds of modes or more with close to unit efficiency, for material parameters achievable today.

Citation (ISO format)
AFZELIUS, Mikael et al. Multimode quantum memory based on atomic frequency combs. In: Physical review, A, Atomic, molecular, and optical physics, 2009, vol. 79, n° 5. doi: 10.1103/PhysRevA.79.052329
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1050-2947
818views
657downloads

Technical informations

Creation05/13/2014 3:25:00 PM
First validation05/13/2014 3:25:00 PM
Update time03/14/2023 9:13:52 PM
Status update03/14/2023 9:13:52 PM
Last indexation05/02/2024 3:11:47 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack