原子系统中基于关联相位涨落的量子干涉调控

提出了一种利用原子系统的关联相位涨落调控量子干涉的方法。原子之间的碰撞以及原子与外界热库的耦合会导致原子能级产生随机的相位涨落。研究了不同能级的相位涨落的强度和他们之间的关联对原子相干性和量子干涉的影响。结果表明,正关联相位涨落可以增强相消量子干涉(探针光的吸收减弱),而反关联相位涨落可以增强相长量子干涉(吸收增强)。在特定条件下量子干涉消失,原子对探针光的响应由Autler-Townes分裂决定。最后,研究了耦合光Rabi频率对量子干涉的影响。当耦合光较弱时,可以利用原子能级的关联相位涨落有效地调控量子干涉;当耦合光很强时,量子干涉非常弱,可以被忽略。

Abstract

The manipulation of quantum interference using correlated phase fluctuation in an atomic system is proposed. The collisions among atoms and the coupling between the atoms and the external reservoir environment result in the random phase fluctuations of the atomic energy levels. The effect of the phase fluctuations and their correlation on the atomic coherence and quantum interference is studied. The results show that the correlated and anticorrelated phase fluctuations lead to the destructive quantum interference (suppressed absorption of the probe field) and the constructive quantum interference (enhanced absorption of the probe field),respectively. The quantum interference vanishes under certain condition,and the response of the atoms to the probe field is determined by the Autler-Townes splitting. Finally,the influence of the Rabi frequency of the coupling field on the quantum interference is studied. When the coupling field is relatively weak,the quantum interference can be efficiently manipulated using the correlated phase fluctuations. When the coupling field is strong,the quantum interference can be ignored.

参考文献

[1] Arimondo E,Orriols G.Nonabsorbing Atom Coherences by Coherent Two-Photon Transition in a Three-Level Optical Pumping［J］.Lettere Al Nuovo Cimento,1976,17:333-338.DOI:10.1007/BF02746514.

[2] Gray H R,Whitley R M,Stroud C R.Coherent Trapping of Atomic Populations［J］.Optics Letters,1978,3:218-220.DOI:10.1364/OL.3.000218.

[3] Boller K J,Imamolu A,Harris S E.Observation of Electromagnetically Induced Transparency［J］.Physical Review Letters,1991,66:2593-2596.DOI:10.1103/PhysRevLett.66.2593.

[4] Fleischhauer M,Imamoglu A,Marangos J P.Electromagnetically Induced Transparency: Optics in Coherent Media［J］.Review of Modern Physics,2005,77:633-673.DOI:10.1103/RevModPhys.77.633.

[5] van der Veer W E,van Diest R J J,Donszelmann A.van Linden van den Heuvell H B,Experimental Demonstration of Light Amplification without Population Inversion［J］.Physical Review Letters,1993,70:3243-3246.DOI:10.1103/PhysRevLett.70.3243.

[6] Harris S E.Lasers without Inversion:Interference of Lifetime-Broadened Resonances［J］.Physical Review Letters,1989,62:1033-1036.DOI:10.1103/PhysRevLett.62.1033.

[7] Wang D W,Zhou H T,Guo M J,et al.Optical Diode Made From a Moving Photonic Crystal［J］.Physical Review Letters,2013,110:093901.DOI:10.1103/PhysRevLett.110.093901.

[8] 郭苗军,王丹,周海涛,等.光子晶体特性在EIT介质中的实验实现［J］.量子光学学报,2014,20:148-153.DOI:10.3788/ASQO20142002.0148.

[9] Hau L V,Harris S E,Dutton Z,et al.Light Speed Reduction to 17 Meters per Second in an Ultracold Atomic Gas［J］.Nature,1999,397:594-598.DOI:10.1038/17561.

[10] Julsgaard B,Sherson J,Cirac J I,et al.Experimental Demonstration of Quantum Memory for Light［J］.Nature,2004,432:482-486.DOI:10.1038/nature03064.

[11] Wang D W,Cai H,Yuan L,et al.Topological Phase Transitions in Supperradiance Lattice［J］.Optica,2015,2:712-715.DOI:10.1364/OPTICA.2.000712.

[12] Chen L C,Wang P J,Meng Z M,et al.Experimental Observation of One-Dimensional Supperradiance Lattices in Ultracold Atoms［J］.Physical Review Letters,2018,120:193601.DOI:10.1103/PhysRevLett.120.193601.

[13] Braje D A,Balic＇ V,Goda S,et al.Frequency Mixing Using Electromagnetically Induced Transparency in Cold Atoms［J］.Physical Review Letters,2004,93:183601.DOI:10.1103/PhysRevLett.93.183601.

[14] Du S W,Kolchin P,Belthangagady C,et al.Subnatural Linewidth Biphotons with Controllable Temporal Length［J］.Physical Review Letters,2008,100:183603.DOI:10.1103/PhyRevLett.100.183603.

[15] McCormick C F,Boyer V,Arimondo E,et al.Strong Relative Intensity Squeezing by Four-Wave Mixing in Rubidium Vapor［J］.Optics Letters,2007,32:178-180.DOI:10.1364/OL.32.000178.

[16] Guo M J,Zhou H T,Wang D W,et al.Experimental Investigation of High-Frequency-Difference Twin Beams in Hot Cesium Atoms［J］.Physical Review A,2014,89:033813.DOI:10.1103/PhysRevA.89.033813.

[17] Zhu S Y,Chan R C F,Lee C P.Spontaneous Emission From a Three-Level Atom ［J］.Physical Review A,1995,52:710-716.DOI:10.1103/PhysRevA.52.710.

[18] Zhu S Y,Narducci L M,Scully M O.Quantum Mechanical Interference Effects in the Spontaneous-Emission Spectrum of a Driven Atom［J］.Physical Review A,1995,52:4791-4802.DOI:10.1103/PhysRevA.52.4791.

[19] Ficek Z,Swain S.Quantum Interference and Coherence:Theory and Experiments［M］.Springer,2004:258.

[20] Agarwal G S.Anisotropic Vacuum-Induced Interference in Decay Channels［J］.Physical Review Letters,2000,84:5500-5503.DOI:10.1103/PhysRevLett.84.5500.

[21] Agarwal G S.Quantum Statistical Theory of Optical-Resonance Phenomena in Fluctuating Laser Fields［J］.Physical Review A,1978,18:1490-1506.DOI:10.1103/PhysRevA.18.1490.

[22] Saxena R,Agarwal G S.Modulated Hanle Signals in Partially Coherent Fields［J］.Physical Review A,1982,25:2123-2134.DOI:10.1103/PhysRevA.25.2123.

[23] Benesty J,Chen J D,Huang Y T.On the Importance of the Pearson Correlation Coefficient in Noise Reduction［J］.IEEE Trans Audio,Speech,Language Process,2008,16:757-765.DOI:10.1109/TASL.2008.919072.

[24] Wu J Z,Liu J H,He Y Y,et al.Quantum Interference Manipulation and Enhancement with Fluctuation-Correlation-Induced Dephasing in an Atomic System［J］.Physical Review A,2018,98:043829.DOI:10.1103/PhysRevA.98.043829.

武晋泽, 刘晋宏, 张月颖, 贺炎炎, 张俊香. 原子系统中基于关联相位涨落的量子干涉调控[J]. 量子光学学报, 2019, 25(1): 48. WU Jin-ze, LIU Jin-hong, ZHANG Yue-ying, HE Yan-yan, ZHANG Jun-xiang. Manipulation of Quantum Interference with Correlated Phase Fluctuation in Atomic System[J]. Acta Sinica Quantum Optica, 2019, 25(1): 48.

原子系统中基于关联相位涨落的量子干涉调控

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