Effect of the initially atom coherence
on the two-mode-entanglement

Abstract

Abstract: The effect of the initially atom coherenceon on the two-mode-entanglement of three-level atom in cascade configuration is studied , according to the entanglement criterion proposed by Duan et al. The result shows that, entanglemengt of two-mode cavity field can be induced only when the atom coherence exists. If gain coefficient is unchanged, the degree of entanglement first increases and then decreases with the increase of detuning. In certain detuning circumstances, the degree of entanglement of two-mode cavity field increases with the increase of gain coefficient. If detuning is zero, the entanglemengt of two-mode cavity field can’t be created, no matter whether the existence of atomic coherence.

Key words: quantum optics, entanglement, atom coherence, gain coefficients, detuning

CLC Number:

O431.2

CUI Hai-sheng，ZHANG Bo，GE Guo-qin. Effect of the initially atom coherence on the two-mode-entanglement [J]. J4, 2014, 31(3): 299-304.

References

[1] Li Chunxian, Jin Lijuan,Wang Chengzhi. Thermal entanglement mixture and quantum communication in a spin chain
[J]. Chinese Journal of Quantum Eletronics(量子电子学报), 2010,27(1): 52-56. 李春先，靳丽娟，王成志.自旋链中的热纠缠、混合度和量子通讯
[J].量子电子学报, 2010,27(1): 52-56.
[2] He Daiguo, Dong Yuli, Fang Jianxing, et al. Entangled coherent states: generation
[J]. Chinese Journal of Quantum Eletronics(量子电子学报)，2011,28(4):407-413. 何带果，董裕力，方建兴等. 纠缠相干态的制备
[J]. 量子电子学报，2011,28(4):407-413.
[3] Yang Fei, Cong Shuang. Entanglement detection and measurement of quantum system
[J]. Chinese Journal of Quantum Eletronics(量子电子学报)，2011,28(4)：391-401. 杨霏，丛爽. 量子系统的纠缠探测与纠缠测量
[J]. 量子电子学报，2011,28(4)：391-401.
[4] Li Xiaoping, et al. The Entanglement in the system of the two-level atom interacting with finite dimension mixed-field
[J]. Laser Journal（激光杂志）, 2005, 26(5)：50-51. 李小平等. 有限维混合态光场与二能级原子相互作用系统中的纠缠
[J].激光杂志,2005, 26(5)：50-51.
[5] Lu Daoming. Entanglement properties in the system of atoms interacting with coupled cavities
[J]. Acta Physica Sinica（物理学报）, 2011,60(9)：090302. 卢道明.原子与耦合腔相互作用系统中的纠缠特性
[J]. 物理学报，2011,60(9)：090302.
[6] Meystre P , Sargent M III. Elements of Quantum Optics
[M]. Berlin: Springer-Verlag, 1990.
[7] Walls D F , Milburn G J. Quantum Optics
[M]. Berlin:Springer-Verlag, 1994.
[8] Scully M O, Zubairy M S. Quantum Optics
[M]. New York: Cambridge University Press, 1997.
[9] Hioe F T ,Carroll C E. Coherent population trapping in N-level quantum systems
[J]. Phys. Rev. A, 1988, 37: 3000~3005.
[10] Carroll C E , Hioe F T. Coherent population transfer via the continuum
[J]. Phys. Rev. Lett, 1992, 68: 3523~3526.
[11] Fleischhauer M, Correlation of high-frequency phase fluctuations in electromagnetically induced transparency
[J]. Phys. Rev. Lett., 1994, 72: 989~992.
[12] Jyotsna I V , Agarwal G S. Coherent population trapping at low light levels
[J]. Phys. Rev. A, 1995, 52: 3147~3152.
[13] Jyotsna I V , Agarwal G S. Dynamics of coherent population trapping states in dense systems
[J]. Phys. Rev. A, 1996, 53: 1690~1696.
[14] Vanier J, Godone A and Levi F. Coherent population trapping in cesium: Dark lines and coherent microwave emission
[J]. Phys. Rev. A, 1998, 58: 2345~2358.
[15] Godone A, Levi F and Vanier J. Coherent microwave emission in cesium under coherent population trapping
[J]. Phys. Rev. A, 1999, 59: R12~15.
[16] Harris S E, Field J E and Imamoglu A. Nonlinear optical processes using electromagnetically induced transparency
[J]. Phys. Rev. Lett., 1990, 64: 1107~1111.
[17] Hahn K H, King D A and Harris S E. Nonlinear generation of 104.8-nm radiation within an absorption window in zinc
[J]. Phys. Rev. Lett., 1990, 65: 2777~2780.
[18] Boller K J, Imamoglu A, Harris S E. Observation of electromagnetically induced transparency
[J]. Phys. Rev. Lett., 1991, 66: 2593~2596.
[19] Field J E, Hahn K H and Harris S E. Observation of electromagnetically induced transparency in collisionally broadened lead vapor
[J]. Phys. Rev. Lett., 1991, 67: 3062~3065.
[20] Zhang Lianshui, Li Xiaoli, Wang Jian, et al . Electro magnetically induced absorption and electro magnetically induced transparency in an optical-radio two-photon coupling configuration
[J]. Acta Physica Sinica(物理学报),2008,57(8):4921-4926. 张连水，李晓莉，王健，等.光学-射频双光子耦合作用下的电磁诱导透明和电磁诱导吸收
[J].物理学报，2008,57(8):4921-4926.
[21] Hakuta D, Marmet L and Stoicheff B. Electric -field-induced second-harmonic generation with reduced absorption in atomic hydrogen
[J]. Phys. Rev. Lett., 1991, 66: 596~560.
[22] Duan L M, Giedke G, Cirac J I, and Zoller P. Inseparability Criterion for Continuous Variable Systems
[J]. Phys. Rev. Lett., 2000, 84: 2722~2725.
[23] Lu N, Zhu S Y. Quantum Theory of A Two-mode Correlated Spontaneous-emission Laser
[J]. Phys. Rev. A 1990, 41:2865~2868.

Effect of the initially atom coherence on the two-mode-entanglement

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