An ultra-high optical depth cold atomic ensemble for quantum memories

B. M. Sparkes; J. Bernu; M. Hosseini; J. Geng; Q. Glorieux; P. A. Altin; P. K. Lam; N. P. Robins; B. C. Buchler

doi:10.1088/1742-6596/467/1/012009

An ultra-high optical depth cold atomic ensemble for quantum memories

B. M. Sparkes, J. Bernu, M. Hosseini, J. Geng, Q. Glorieux, P. A. Altin, P. K. Lam, N. P. Robins, B. C. Buchler

Research output: Contribution to journal › Conference article › peer-review

9 Citations (Scopus)

Abstract

Quantum memories for light lie at the heart of long-distance provably-secure communication. Demand for a functioning quantum memory, with high efficiency and coherence times approaching a millisecond, is therefore at a premium. Here we report on work towards this goal, with the development of a ⁸⁷Rb magneto-optical trap with a peak optical depth of 1000 for the D2 F 2 F′ 3 transition using spatial and temporal dark spots. With this purpose-built cold atomic ensemble we implemented the gradient echo memory (GEM) scheme on the D1 line. Our data shows a memory efficiency of 80 ± 2% and coherence times up to 195 μs.

Original language	English
Article number	012009
Journal	Journal of Physics: Conference Series
Volume	467
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/467/1/012009
Publication status	Published - 2013
Event	21st International Conference on Laser Spectroscopy, ICOLS 2013 - Berkeley, CA, United States Duration: 9 Jun 2013 → 14 Jun 2013

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10.1088/1742-6596/467/1/012009

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title = "An ultra-high optical depth cold atomic ensemble for quantum memories",

abstract = "Quantum memories for light lie at the heart of long-distance provably-secure communication. Demand for a functioning quantum memory, with high efficiency and coherence times approaching a millisecond, is therefore at a premium. Here we report on work towards this goal, with the development of a 87Rb magneto-optical trap with a peak optical depth of 1000 for the D2 F 2 F′ 3 transition using spatial and temporal dark spots. With this purpose-built cold atomic ensemble we implemented the gradient echo memory (GEM) scheme on the D1 line. Our data shows a memory efficiency of 80 ± 2\% and coherence times up to 195 μs.",

author = "Sparkes, \{B. M.\} and J. Bernu and M. Hosseini and J. Geng and Q. Glorieux and Altin, \{P. A.\} and Lam, \{P. K.\} and Robins, \{N. P.\} and Buchler, \{B. C.\}",

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doi = "10.1088/1742-6596/467/1/012009",

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journal = "Journal of Physics: Conference Series",

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T1 - An ultra-high optical depth cold atomic ensemble for quantum memories

AU - Sparkes, B. M.

AU - Bernu, J.

AU - Hosseini, M.

AU - Geng, J.

AU - Glorieux, Q.

AU - Altin, P. A.

AU - Lam, P. K.

AU - Robins, N. P.

AU - Buchler, B. C.

PY - 2013

Y1 - 2013

N2 - Quantum memories for light lie at the heart of long-distance provably-secure communication. Demand for a functioning quantum memory, with high efficiency and coherence times approaching a millisecond, is therefore at a premium. Here we report on work towards this goal, with the development of a 87Rb magneto-optical trap with a peak optical depth of 1000 for the D2 F 2 F′ 3 transition using spatial and temporal dark spots. With this purpose-built cold atomic ensemble we implemented the gradient echo memory (GEM) scheme on the D1 line. Our data shows a memory efficiency of 80 ± 2% and coherence times up to 195 μs.

AB - Quantum memories for light lie at the heart of long-distance provably-secure communication. Demand for a functioning quantum memory, with high efficiency and coherence times approaching a millisecond, is therefore at a premium. Here we report on work towards this goal, with the development of a 87Rb magneto-optical trap with a peak optical depth of 1000 for the D2 F 2 F′ 3 transition using spatial and temporal dark spots. With this purpose-built cold atomic ensemble we implemented the gradient echo memory (GEM) scheme on the D1 line. Our data shows a memory efficiency of 80 ± 2% and coherence times up to 195 μs.

UR - https://www.scopus.com/pages/publications/84891791896

U2 - 10.1088/1742-6596/467/1/012009

DO - 10.1088/1742-6596/467/1/012009

M3 - Conference article

SN - 1742-6588

VL - 467

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012009

T2 - 21st International Conference on Laser Spectroscopy, ICOLS 2013

Y2 - 9 June 2013 through 14 June 2013

ER -

An ultra-high optical depth cold atomic ensemble for quantum memories

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