压缩真空中的电磁诱导透明

吕纯海; 谭磊; 谭文婷

doi:10.7498/aps.60.024204

摘要

从主方程出发,通过解析求解密度矩阵非对角元,研究了压缩真空中Λ型三能级原子的电磁诱导透明现象(EIT).研究结果表明:EIT显著地依赖于相干光场的相位、压缩真空的压缩强度和压缩相位.Λ型三能级原子不但有电磁诱导透明和慢光速现象,而且还会表现出对探测光的增益、快光速和反向光速效应;且Λ型三能级原子对探测光场的吸收和增益与探测光强度有关,这与普通真空中不同.

关键词:

We studied the electromagnetically induced transparency, where the three-level atom of Λ-type is put in two statistically independent squeezed vacuums. We start from the master equation containing the decay of the atom to the squeezed vacuums, and solve the non-diagonal density matrix element analytically, finding that it is strongly dependent on the squeezing degree and the phase of the squeezed vacuum. There is also a dependence on the intensity and phase of the probe beam, which would not appear in the normal vacuum case. By coupling with squeezed vacuums, the atom would not only experience electromagnetically induced transparency and slow group velocity, but also induce a fast group velocity,backward group velocity and a gain in the probe light field. Besides, the absorption and gain can be modulated by the intensity of probe light.

Keywords:

squeezed vacuum /
electromagnetically induced transparency /
light gain

作者及机构信息

(1)兰州大学理论物理研究所,兰州 730000; (2)兰州大学理论物理研究所,兰州 730000;兰州大学磁学与磁性材料教育部重点实验室,兰州 730000

基金项目: 国家自然科学基金(批准号:10704031)、国家基础科学人才培养基金(批准号:J0630313)、兰州大学理论物理与数学纯基础科学基金(批准号:LZU05001)和甘肃省自然科学基金(批准号:3ZS061-A25-035)资助的课题.

Authors and contacts

1.
Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China

参考文献

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[24]	Gardiner C W 1986 Phys. Rev. Lett. 56 1917
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[29]	Huang Y X, Zhao P Y, Huang X, Zhan M S 2004 Acta Phys. Sin. 53 0075 (in Chinese)[黄燕霞、赵朋义、黄熙、詹明生 2004 53 0075]
[30]	Wen J J, Shao X Q, Jin X R, Zhang S, Yeon K H 2008 Chin. Phys. B 17 1618
[31]	Wang F Q, Zhang Z M, Liang R S, 2009 Chin. Phys. B 18 597
[32]	Xu X X, Hu L Y, Fan H Y, 2009 Chin. Phys. B 18 5139
[33]	Xiang S H, Shao B, Song K H, 2009 Chin. Phys. B 18 418
[34]	Akamatsu D, Akiba K, Kozuma M 2004 Phys. Rev. Lett. 92 203602
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[37]	Walls D F, Milburn G J 1995 Quantum Optics (Berlin: Springer-Verlag) pp91—97, pp208—210,pp225—227
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[39]	Ferguson M R, Ficek Z, Dalton B J 1995 J. Mod. Opt. 42 679
[40]	Zhou F X, Niu Y P, Gong S Q 2009 J. Chem. Phys. 131 034105

施引文献

[1]	Harris S E, Field J E, Imamoglu A 1990 Phys. Rev. Lett. 64 1107
[2]	Boller K J, Imamolu A, Harris S E 1991 Phys. Rev. Lett. 66 2593
[3]	Fleischhauer M, Imamoglu A, Marangos J P 2005 Rev. Mod. Phys. 77 633
[4]	Schmidt H, Imamogdlu A 1996 Opt. Lett. 21 1936
[5]	Wang F Y, Shi B S, Lu X S, Guo G C 2008 Chin. Phys. B 17 1793
[6]	Matsko A B, Kocharovskaya O, Rostovtsev Y, Welch A S Z G R, Scully M O 2001 Adv. At. Mol. Opt. Phys. 46 191
[7]	Fleischhauer M, Lukin M D 2002 Phys. Rev. A 65 022314
[8]	Eisaman M D, Andre A, Massou F, Fleischhauer M, Zibrov A S, Lukin M D 2001 Nature (London) 413 273
[9]	Bagayev S N, Vasilév V V, Egorov V S, Lebedev V N, Mekhov I B, Moroshkin P V, Fedorov A N, Chekhonin I A 2005 Laser Phys. 15 975
[10]	Xu Q F, Sandhu S, Povinelli M L, Shakya J, Fan S H, Lipson M 2006 Phys. Rev. Lett. 96 123901
[11]	Turukhin A V, Sudarshanam V S, Shahriar M S, Musser J A, Ham B S, Hemmer P R 2001 Phys. Rev. Lett. 88 023602
[12]	Hau L V, Harris S E, Dutton Z, Behroozi C H 1999 Nature (London) 397 594
[13]	Buth C, Santra R, Young L 2007 Phys. Rev. Lett. 98 253001
[14]	Wu Y, Yang X X 2005 Phys. Rev. A 71 053806
[15]	Li Y Y, Hou X, Bai J T, Yan J F, Gan C L 2008 Chin. Phys. B 17 2885
[16]	Zhang L S, Li X L, Wang J, Yang L J, Feng X M, Li X W, Fu G S 2008 Acta Phys. Sin. 57 4921 (in Chinese) [张连水、李晓莉、王健、杨丽君、冯晓敏、李晓苇、傅广生 2008 57 4921]
[17]	Zheng J, Liu Z D, Zeng F H, Fang H J 2008 Acta Phys. Sin. 57 4219 (in Chinese) [郑军、刘正东、曾福华、方慧娟 2008 57 4219]
[18]	Du Y J, Ge G K 2008 Acta Opt. Sin. 28 0375 (in Chinese) [杜英杰、葛国库 2008 光学学报 28 0375]
[19]	Hou B P, Wang S J, Yu W L, Sun W L 2006 Phys. Lett. A 352 462
[20]	She Y C, Wang D L, Ding J W 2009 Acta Phys. Sin. 58 3198 (in Chinese) [佘彦超、王登龙、丁建文2009 58 3198]
[21]	Walls D F 1983 Nature (London) 306 141
[22]	Grangier P, Slusher R E, Yurke B, LaPorta A 1987 Phys. Rev. Lett. 59 2153
[23]	Saleh B E, Teich M C 1987 Phys. Rev. Lett. 58 2656
[24]	Gardiner C W 1986 Phys. Rev. Lett. 56 1917
[25]	Ritsch H, Zoller P 1987 Opt. Commun. 64 523
[26]	Carmichael H J, Lane A S, Walls D F 1987 Phys. Rev. Lett. 58 2539
[27]	Tan L, Zhang Q, Wang Z C 2005 Acta Opt. Sin. 25 1277 (in Chinese) [谭磊、张琴、汪志诚 2005 光学学报 25 1277]
[28]	Tan L, Zang X F, Li J P, Liu L W, Ding C Y 2008 J. Phys. Joc. Jpn. 77 044704
[29]	Huang Y X, Zhao P Y, Huang X, Zhan M S 2004 Acta Phys. Sin. 53 0075 (in Chinese)[黄燕霞、赵朋义、黄熙、詹明生 2004 53 0075]
[30]	Wen J J, Shao X Q, Jin X R, Zhang S, Yeon K H 2008 Chin. Phys. B 17 1618
[31]	Wang F Q, Zhang Z M, Liang R S, 2009 Chin. Phys. B 18 597
[32]	Xu X X, Hu L Y, Fan H Y, 2009 Chin. Phys. B 18 5139
[33]	Xiang S H, Shao B, Song K H, 2009 Chin. Phys. B 18 418
[34]	Akamatsu D, Akiba K, Kozuma M 2004 Phys. Rev. Lett. 92 203602
[35]	Akamatsu D, Yokoi Y, Arikawa M, Nagatsuka S, Tanimura T, Furusawa A, Kozuma M 2007 Phys. Rev. Lett. 99 153602
[36]	Joshi A, Puri R P 1992 Phys. Rev. A 45 2025
[37]	Walls D F, Milburn G J 1995 Quantum Optics (Berlin: Springer-Verlag) pp91—97, pp208—210,pp225—227
[38]	Louisell W H 1973 Quantum Statistical Properties of Radiation (New York: Wiley) pp331—368
[39]	Ferguson M R, Ficek Z, Dalton B J 1995 J. Mod. Opt. 42 679
[40]	Zhou F X, Niu Y P, Gong S Q 2009 J. Chem. Phys. 131 034105

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