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Long-lived quantum memory

Long-lived quantum memory
Long-lived quantum memory
Quantum memories for the storage and retrieval of quantum information are extremely sensitive to environmental influences, which limits their storage times. The ground states of atoms and ions are potential candidates for quantum memories, but although coherence times of the order of a few seconds for atoms and hundreds of seconds for ions have been demonstrated, long-lived storage and retrieval of single quantum excitations remains an outstanding challenge. Here, we report a quantum memory using the magnetically insensitive clock transition in atomic rubidium confined in a one-dimensional optical lattice. We observe quantum memory lifetimes exceeding 6 ms, more than two orders of magnitude longer than previously reported. This advance is an important step towards the realization of long-distance quantum networks and the controlled production of complex entangled states of matter and light
1745-2473
100-104
Zhao, R.
0d9a8bc7-f0f8-421c-96a2-702f37993d7e
Dudin, Y. O.
c24ba684-bf0d-4936-adf9-d6109015ae5d
Jenkins, S. D.
65d861fb-b85a-4927-805a-7c906fca26c6
Campbell, C. J.
f75c451f-a6b6-422a-adcc-ce5084297992
Matsukevich, D. N.
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Kennedy, T.A.B.
68040c42-1663-4a03-87f0-b09045cf5357
Kuzmich, A.
7f959cd2-805c-4cb6-8938-8d6abcd212ee
Zhao, R.
0d9a8bc7-f0f8-421c-96a2-702f37993d7e
Dudin, Y. O.
c24ba684-bf0d-4936-adf9-d6109015ae5d
Jenkins, S. D.
65d861fb-b85a-4927-805a-7c906fca26c6
Campbell, C. J.
f75c451f-a6b6-422a-adcc-ce5084297992
Matsukevich, D. N.
00a976d1-adbb-435a-a0d9-bd2cf2ad4f44
Kennedy, T.A.B.
68040c42-1663-4a03-87f0-b09045cf5357
Kuzmich, A.
7f959cd2-805c-4cb6-8938-8d6abcd212ee

Zhao, R., Dudin, Y. O., Jenkins, S. D., Campbell, C. J., Matsukevich, D. N., Kennedy, T.A.B. and Kuzmich, A. (2009) Long-lived quantum memory. Nature Physics, 5 (2), 100-104. (doi:10.1038/nphys1152).

Record type: Article

Abstract

Quantum memories for the storage and retrieval of quantum information are extremely sensitive to environmental influences, which limits their storage times. The ground states of atoms and ions are potential candidates for quantum memories, but although coherence times of the order of a few seconds for atoms and hundreds of seconds for ions have been demonstrated, long-lived storage and retrieval of single quantum excitations remains an outstanding challenge. Here, we report a quantum memory using the magnetically insensitive clock transition in atomic rubidium confined in a one-dimensional optical lattice. We observe quantum memory lifetimes exceeding 6 ms, more than two orders of magnitude longer than previously reported. This advance is an important step towards the realization of long-distance quantum networks and the controlled production of complex entangled states of matter and light

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More information

Published date: February 2009
Organisations: Applied Mathematics

Identifiers

Local EPrints ID: 175767
URI: http://eprints.soton.ac.uk/id/eprint/175767
ISSN: 1745-2473
PURE UUID: 9499f5e9-c2f0-4cd3-89bc-52e77331aae3

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Date deposited: 28 Feb 2011 12:53
Last modified: 08 Jan 2022 08:39

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Contributors

Author: R. Zhao
Author: Y. O. Dudin
Author: S. D. Jenkins
Author: C. J. Campbell
Author: D. N. Matsukevich
Author: T.A.B. Kennedy
Author: A. Kuzmich

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