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In this paper, the effects of quantum and classical correlations on the excitation energy transfer in a three-quasi-spin-pigment system are investigated. We first study the dependence of the energy transfer efficiency on various initial correlations of the donor pigments, and find that the initial concurrence is crucial to the efficiency no matter whether the initial states are pure or mixed. We then demonstrate the dynamics of correlations of the system and observe the appearance of sudden death of quantum correlations in the donor pigments. The relation between the energy transfer efficiency and the dynamics of correlations in the donor pigments is also discussed. 相似文献
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本文通过对具有相同能量和相同脉宽的不同 UWB( Ultra Wide Band)脉冲信号在脉位调制 ( PPM,Pulse Position Modulation)和脉幅调制 ( PAM,Pulse Amplitude Modulation)方式下的抗噪声性能的理论分析与仿真对比 ,研究了在 AWGN( Additive White Gaussian Noise,加性高斯白噪声 )条件下 ,不同调制方式下脉冲波形的选择与系统性能之间的关系 相似文献
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