Three-mode entanglement via atomic coherence induced by strong classical field

Three-mode entanglement via atomic coherence induced by strong classical field
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强经典场诱导的原子相干性三模纠缠

DOI:
10.1016/j.optcom.2010.03.023
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发表时间:
2010-07
影响因子:
2.4
通讯作者:
Zhi-Ming Zhan
Zhi-Ming Zhan
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Pei-Jun Song;Xiang-Ying Hao;Pei Huang;Zhi-Ming Zhan

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我们提出了一个新的方案来实现完全三模纠缠的标准标准标准的基础上[P.货车Look和A. Furusawa,Phys.Rev.A67,052315(2003)]在由两个强经典场驱动的四能级原子系统中。通过数值模拟系统的动力学过程,我们研究了纠缠的产生和演化。基于我们的方案,证明了在不同的初始条件下,三模连续变量纠缠可以实现,并且通过增强经典光场的强度可以延长纠缠周期.此外,我们的数值结果还表明,该系统可以被认为是一个三模纠缠放大器。
We propose a new scheme to achieve fully three-mode entanglement based on the standard criteria [P. van Loock and A. Furusawa, Phys. Rev. A 67, 052315 (2003)] in a four-level atomic system driven by two strong classical fields. Via numerically simulating the dynamics of the system, we investigate the generation and evolution of entanglement. Based on our scheme, it is demonstrated that the three-mode continuous-variable (CV) entanglement can be achieved under different initial conditions and the entangled period will be extended by enhancing the intensity of the classical field. Moreover, our numerical results also show that the present system can be considered as a three-mode entanglement amplifier.
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