Multiphoton transitions to the continuum via multiple resonances
Multiphoton transitions to the continuum via multiple resonances
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多光子通过多重共振跃迁到连续谱
DOI：
10.1088/0022-3700/9/17/016
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
F. Faisal
中科院分区：
文献类型：
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作者：
F. Faisal
多声子跃迁到连续谱直接通过多个共振和他们的相互作用被认为是。这个问题被处理量子电动力学的（N级+连续）的系统内的行波近似方程求解。单位时间的跃迁速率具有很强的强度和频率依赖性。共振的相互作用被发现产生的“累积频率失谐”和“累积功率宽度”的特征和管理的过渡系统。通过三重共振的四光子跃迁进行了更详细的讨论，这表明，除其他外，通过几个整数功率的强度在指定条件下的可变的“幂律”。水平的变化，这是自然产生的过渡过程中的组成部分，也给出。给出了一般结果。
Multiphonon transitions to the continuum directly via multiple resonances and their mutual interactions are considered. The problem is treated quantum-electrodynamically by solving a system of (N levels+continuum) equations within the rotating-wave approximation. The transition rate per unit time exhibits strong intensity and frequency dependence. The mutual interactions of the resonances are found to generate 'cumulative frequency detunings' and 'cumulative power widths' which characterize and govern the transitions in the system. A four-photon transition via triple resonances is discussed in greater detail, and this shows inter alia variable 'power laws' that pass through several integer powers of intensity at specified conditions. The level shifts, which are found to arise naturally as integral parts of the transition process, are also given. The general result is presented.