-
For a quantum memory to be useful as a quantum repeater, a long coherence time is a crucial requirement. In recent years, the most commonly explored medium for quantum storage has been atomic gases. We report an experiment to realize a quantum memory based on an Rb atomic ensemble in a one-dimensional far-detuned optical lattice. A multimode 30 W continuous wave fiber laser was used to construct a travelling wave lattice with a period of 25 m. The Rb atoms were loaded into a magneto-optical-trap, which was then adjusted to optimize the polarization gradient cooling. To trap the cooled atoms, we turned on a laser which has a wavelength of 1064 nm and therefore is red-detuned from the resonance frequencies of D1 and D2 transitions of 87Rb atoms. By taking the short-distance time-of-flight image the temperature of the atoms was found to be about 20 K. This system will provide a foundation for future quantum information storage studies.
-
Keywords:
- multimode laser /
- cold atoms /
- magneto-optical-trap /
- optical lattice
[1] Letokhov V S 1968 JETP Lett. 7 272
[2] Verkerk P, Lounis B, Salomon C, Cohen-Tannoudji C 1992 Phys. Rev. Lett. 68 3861
[3] Jessen P S, Gerz C, Lett P D, Phillips W D, Rolston S L, Spreeuw R J C, Westbrook C I 1992 Phys. Rev. Lett. 69 49
[4] Hemmerich A, Hansch T W 1993 Phys. Rev. Lett. 70 410
[5] Grynberg G, Lounis B, Verkerk P, Courtois J Y, Salomon C 1993 Phys. Rev. Lett. 70 2249
[6] Kastberg A, Phillips W D, Rolston S L, Spreeuw R J C 1995 Phys. Rev. Lett. 74 1542
[7] Gatzke M, Birkl G, Jessen P S, Kastberg A, Rolston S L, Phillips W D 1997 Phys. Rev. A 55 3987
[8] Dahan B M, Peik E, Reichel J, Castin Y, Salomon C 1996 Phys. Rev. Lett. 76 4508
[9] Wilksinson S R, Barucha C F, Madison K W, Niu Q, Raizen M G 1996 Phys. Rev. Lett. 76 4512
[10] Greiner M, Mandel O, Esslinger T, Hansh T W, Blich I 2002 Nature 415 39
[11] Jaksch D, Briegel H J, Cirac J I, Gardiner C W, Zoller P 1991 Phys. Rev. Lett. 82 1975
[12] Mandel O, Greiner M, Widera A, Rom T, Hansh T W, Bloch I 2003 Nature 425 937
[13] Brennen G K, Caves M C, Jessen P S, Deutsch I H 1999 Phys. Rev. Lett. 82 1060
[14] Pachos J K, Knight P L 2003 Phys. Rev. Lett. 91 107902
[15] Vollbrecht K G, Soano E, Cirac J I 2004 Phys. Rev. Lett. 93 220502
[16] Schrader D, Dotsenko I, Khudaverdyan M, Miroshnychenko Y, Rauschenbeutel A, Meschede D 1999 Phys. Rev. Lett. 93 150501
[17] Dalibard J, Cohen-Tannoudji C 1989 J. Opt. Soc. Am. B 6 2023
[18] Jessen P S, Deutsch I H 1996 Adv. Atom. Mol. Opt. Phys. 37 95
[19] Guidoni L, Verkerk P 1999 J. Opt. B 1 R23
[20] Grynberg G, Robilliard C 2001 Phys. Rep. 355 335
[21] Xu Z J, Wang D M, Li Z 2007 Acta Phys. Sin. 56 3076 (in Chinese) [徐志君, 王冬梅, 李珍 2007 56 3076]
[22] Qiu Y, He J, Wang Y H, Wang J, Zhang T C, Wang J M 2008 Acta Phys. Sin. 57 6227 (in Chinese) [邱英, 何军, 王彦华, 王婧, 张天才, 王军民 2008 57 6227]
[23] Zhou H L, Zhu Q, Wang B, Xiong D Z 2014 Chin. J. Quantum Electron. 31 1007 (in Chinese) [周海龙, 朱强, 王兵, 熊德志 2014 量子电子学报 31 1007]
[24] Lu X G, Miao X X, Bai J H, Yuan Y, Wu L A, Fu P M, Wang R Q, Zuo Z C 2015 Chin. Phys. B 24 094204
[25] Lu X, Miao X, Bai J, Pei L, Wang M, Gao Y, Wu L A, Fu P, Wang R, Zuo Z 2015 J. Phys. B 48 055003
[26] Grimm R, Weidemuler M 2000 Adv. Atom. Mol. Opt. Phys. 42 95
[27] Gea-Banacloche J, Li Y Q, Jin S Z, Xiao M 1995 Phys. Rev. A 51 576
-
[1] Letokhov V S 1968 JETP Lett. 7 272
[2] Verkerk P, Lounis B, Salomon C, Cohen-Tannoudji C 1992 Phys. Rev. Lett. 68 3861
[3] Jessen P S, Gerz C, Lett P D, Phillips W D, Rolston S L, Spreeuw R J C, Westbrook C I 1992 Phys. Rev. Lett. 69 49
[4] Hemmerich A, Hansch T W 1993 Phys. Rev. Lett. 70 410
[5] Grynberg G, Lounis B, Verkerk P, Courtois J Y, Salomon C 1993 Phys. Rev. Lett. 70 2249
[6] Kastberg A, Phillips W D, Rolston S L, Spreeuw R J C 1995 Phys. Rev. Lett. 74 1542
[7] Gatzke M, Birkl G, Jessen P S, Kastberg A, Rolston S L, Phillips W D 1997 Phys. Rev. A 55 3987
[8] Dahan B M, Peik E, Reichel J, Castin Y, Salomon C 1996 Phys. Rev. Lett. 76 4508
[9] Wilksinson S R, Barucha C F, Madison K W, Niu Q, Raizen M G 1996 Phys. Rev. Lett. 76 4512
[10] Greiner M, Mandel O, Esslinger T, Hansh T W, Blich I 2002 Nature 415 39
[11] Jaksch D, Briegel H J, Cirac J I, Gardiner C W, Zoller P 1991 Phys. Rev. Lett. 82 1975
[12] Mandel O, Greiner M, Widera A, Rom T, Hansh T W, Bloch I 2003 Nature 425 937
[13] Brennen G K, Caves M C, Jessen P S, Deutsch I H 1999 Phys. Rev. Lett. 82 1060
[14] Pachos J K, Knight P L 2003 Phys. Rev. Lett. 91 107902
[15] Vollbrecht K G, Soano E, Cirac J I 2004 Phys. Rev. Lett. 93 220502
[16] Schrader D, Dotsenko I, Khudaverdyan M, Miroshnychenko Y, Rauschenbeutel A, Meschede D 1999 Phys. Rev. Lett. 93 150501
[17] Dalibard J, Cohen-Tannoudji C 1989 J. Opt. Soc. Am. B 6 2023
[18] Jessen P S, Deutsch I H 1996 Adv. Atom. Mol. Opt. Phys. 37 95
[19] Guidoni L, Verkerk P 1999 J. Opt. B 1 R23
[20] Grynberg G, Robilliard C 2001 Phys. Rep. 355 335
[21] Xu Z J, Wang D M, Li Z 2007 Acta Phys. Sin. 56 3076 (in Chinese) [徐志君, 王冬梅, 李珍 2007 56 3076]
[22] Qiu Y, He J, Wang Y H, Wang J, Zhang T C, Wang J M 2008 Acta Phys. Sin. 57 6227 (in Chinese) [邱英, 何军, 王彦华, 王婧, 张天才, 王军民 2008 57 6227]
[23] Zhou H L, Zhu Q, Wang B, Xiong D Z 2014 Chin. J. Quantum Electron. 31 1007 (in Chinese) [周海龙, 朱强, 王兵, 熊德志 2014 量子电子学报 31 1007]
[24] Lu X G, Miao X X, Bai J H, Yuan Y, Wu L A, Fu P M, Wang R Q, Zuo Z C 2015 Chin. Phys. B 24 094204
[25] Lu X, Miao X, Bai J, Pei L, Wang M, Gao Y, Wu L A, Fu P, Wang R, Zuo Z 2015 J. Phys. B 48 055003
[26] Grimm R, Weidemuler M 2000 Adv. Atom. Mol. Opt. Phys. 42 95
[27] Gea-Banacloche J, Li Y Q, Jin S Z, Xiao M 1995 Phys. Rev. A 51 576
Catalog
Metrics
- Abstract views: 7143
- PDF Downloads: 170
- Cited By: 0
下载:
