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从密度矩阵形式的Bloch方程和Maxwell传播方程出发,建立了二能级双脉冲传播的三维半经典理论模式,并给出了数值求解结果-考察了双脉冲在介质中的时空演化,发现了三维空间中双脉冲合并的特性,并与单脉冲的传播进行了比较-Based on the Bloch-Maxwell equation,the three-dimensional model for the double-pulse propagation in a two-level system was set up-The propagation of the double pulses with different areas has been described and compared to that of the single pulse-The pulse mergence has been found in the double-pulse propagation-







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