Theory of noise suppression in Λ -type quantum memories by means of a cavity
Theory of noise suppression in Λ -type quantum memories by means of a cavity
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.
Nunn, J.
2dfa3d2a-3580-456b-962c-0d21bed9cca9
Munns, J. H.D.
a377f213-2da3-463c-924b-32122eb68c4c
Thomas, S.
92a4bf23-fdb8-4d5f-887b-c3d2908155b9
Kaczmarek, K. T.
1658d0d5-06c7-4282-aea9-b2dbab601a12
Qiu, C.
28e635c9-2ac2-450f-96eb-66cc2ca8038f
Feizpour, A.
3bd30b6c-f9d3-4c51-8167-238dd00abe85
Poem, E.
b7e555a1-2a22-4618-a0b7-8b13368d79b5
Brecht, B.
cd5bde09-42fc-4370-874f-e306d05505ca
Saunders, D. J.
8d590c4e-2ea0-439c-bf42-03192c9eb60e
Ledingham, P. M.
8db45fde-00d8-421a-93d6-7f18ac835c28
Reddy, Dileep V.
e1b97c64-fa8b-4bdc-95b2-8fc08a19fd4d
Raymer, M. G.
13373107-f9a4-4727-bdea-1205bad391ef
Walmsley, I. A.
a9b02ef9-f5d9-473f-ac01-bbbe06d28170
31 July 2017
Nunn, J.
2dfa3d2a-3580-456b-962c-0d21bed9cca9
Munns, J. H.D.
a377f213-2da3-463c-924b-32122eb68c4c
Thomas, S.
92a4bf23-fdb8-4d5f-887b-c3d2908155b9
Kaczmarek, K. T.
1658d0d5-06c7-4282-aea9-b2dbab601a12
Qiu, C.
28e635c9-2ac2-450f-96eb-66cc2ca8038f
Feizpour, A.
3bd30b6c-f9d3-4c51-8167-238dd00abe85
Poem, E.
b7e555a1-2a22-4618-a0b7-8b13368d79b5
Brecht, B.
cd5bde09-42fc-4370-874f-e306d05505ca
Saunders, D. J.
8d590c4e-2ea0-439c-bf42-03192c9eb60e
Ledingham, P. M.
8db45fde-00d8-421a-93d6-7f18ac835c28
Reddy, Dileep V.
e1b97c64-fa8b-4bdc-95b2-8fc08a19fd4d
Raymer, M. G.
13373107-f9a4-4727-bdea-1205bad391ef
Walmsley, I. A.
a9b02ef9-f5d9-473f-ac01-bbbe06d28170
Nunn, J., Munns, J. H.D., Thomas, S., Kaczmarek, K. T., Qiu, C., Feizpour, A., Poem, E., Brecht, B., Saunders, D. J., Ledingham, P. M., Reddy, Dileep V., Raymer, M. G. and Walmsley, I. A.
(2017)
Theory of noise suppression in Λ -type quantum memories by means of a cavity.
Physical Review A, 96 (1), [012338].
(doi:10.1103/PhysRevA.96.012338).
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.
This record has no associated files available for download.
More information
Published date: 31 July 2017
Identifiers
Local EPrints ID: 455431
URI: http://eprints.soton.ac.uk/id/eprint/455431
ISSN: 2469-9926
PURE UUID: 0b41c75d-ac35-4626-9477-005a1773d80e
Catalogue record
Date deposited: 21 Mar 2022 17:54
Last modified: 18 Mar 2024 03:58
Export record
Altmetrics
Contributors
Author:
J. Nunn
Author:
J. H.D. Munns
Author:
S. Thomas
Author:
K. T. Kaczmarek
Author:
C. Qiu
Author:
A. Feizpour
Author:
E. Poem
Author:
B. Brecht
Author:
D. J. Saunders
Author:
Dileep V. Reddy
Author:
M. G. Raymer
Author:
I. A. Walmsley
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
