The regulation of the spontaneous emission process of the two-level atom in the excited state is studied by using the dynamic environmental library. The central resonant frequency is dynamically modulated, resulting in a dynamic environment library. In the ideal photonic band-gap environment reservoir, we researched the influence of dynamic pulse modulation forms on the evolution of atomic population. The pulse modulation forms are: single rectangular pulse modulation, continuous rectangular pulse modulation, and combined rectangular pulse modulation. The results shown that adjusting the modulation time width effectively suppressed energy dissipation, the system coherence evolution was protected, and the amplitude of atomic population oscillation became larger. The coherence evolution of the system is effectively protected under short-length combined rectangular pulse modulation. The regulation of atomic spontaneous emission can provide a theoretical basis for technical applications in the field of quantum information.

中文翻译：

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利用动态环境库实现原子自发排放过程控制

利用动态环境库研究了激发态两能级原子自发发射过程的调控。中心谐振频率是动态调制的，从而产生动态环境库。在理想的光子带隙环境库中，我们研究了动态脉冲调制形式对原子群演化的影响。脉冲调制形式有：单一矩形脉冲调制、连续矩形脉冲调制和组合矩形脉冲调制。结果表明，调整调制时间宽度有效抑制了能量耗散，保护了系统相干演化，原子布居振荡幅度变大。系统的相干演化在短长度组合矩形脉冲调制下得到有效保护。原子自发辐射的调控可为量子信息领域的技术应用提供理论依据。