Abstract
Quantum memories, capable of storing single photons or other quantum states of light, to be retrieved on demand, offer a route to large-scale quantum information processing with light. A promising class of memories is based on far-off-resonant Raman absorption in ensembles of Λ-type atoms. However, at room temperature these systems exhibit unwanted four-wave mixing, which is prohibitive for applications at the single-photon level. Here, we show how this noise can be suppressed by placing the storage medium inside a moderate-finesse optical cavity, thereby removing the main roadblock hindering this approach to quantum memory.
Original language | English |
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Article number | 012338 |
Journal | Physical Review A |
Volume | 96 |
Issue number | 1 |
DOIs | |
Publication status | Published - 31 Jul 2017 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics