Light storage in a cold atomic ensemble with a high optical depth
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- Title
- Light storage in a cold atomic ensemble with a high optical depth
- Authors
- Park, K.-K.; Chough, Y.-T.; Kim, Y.-H.
- Date Issued
- 2017-06
- Publisher
- The Korean Physical Society
- Abstract
- A quantum memory with a high storage efficiency and a long coherence time is an essential element in quantum information applications. Here, we report our recent development of an optical quantum memory with a rubidium-87 cold atom ensemble. By increasing the optical depth of the medium, we have achieved a storage efficiency of 65% and a coherence time of 51 ��s for a weak laser pulse. The result of a numerical analysis based on the Maxwell-Bloch equations agrees well with the experimental results. Our result paves the way toward an efficient optical quantum memory and may find applications in photonic quantum information processing. ? 2017, The Korean Physical Society.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/50891
- DOI
- 10.3938/jkps.70.1007
- ISSN
- 0374-4884
- Article Type
- Article
- Citation
- Journal of the Korean Physical Society, vol. 70, no. 11, page. 1007 - 1010, 2017-06
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