On the nature of the Hamiltonian for the interaction of radiation with atoms and molecules: (e/mc)p⋅A, −μ⋅E, and all that
On the nature of the Hamiltonian for the interaction of radiation with atoms and molecules: (e/mc)p⋅A, −μ⋅E, and all that
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关于辐射与原子和分子相互作用的哈密顿量的性质：(e/mc)p⋅A、−μ⋅E 以及所有这些
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
T. Thirunamachandran
中科院分区：
文献类型：
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作者：
E. A. Power;T. Thirunamachandran
在非相对论性量子电动力学中，有一类等价的哈密顿量，描述了辐射与原子或分子相互作用的系统。三个具体的例子，即，最小耦合，多极，和空间平移的形式进行了详细的分析。证明了它们的等效性。拉格朗日方法也进行了研究，以进一步了解动态。运动方程进行了比较。最后，原子的双光子吸收过程被用作各种相互作用哈密顿量的应用，讨论它们的计算差异。
In nonrelativistic quantum electrodynamics there is a class of equivalent Hamiltonians that describe a system of radiation and atoms or molecules in interaction. Three specific examples, namely, the minimal coupling, the multipolar, and the space‐translated forms are analyzed here in detail. Their equivalence is demonstrated. The Lagrangian approach has also been examined to give further insight into the dynamics. The equations of motion are compared. Finally, the process of two‐photon absorption by an atom is used as an application of the various interaction Hamiltonians in a discussion of their computational differences.