Resonant excitation transfer: A quantum electrodynamical study
Resonant excitation transfer: A quantum electrodynamical study
复制标题
共振激发转移：量子电动力学研究
DOI：
10.1063/1.451910
复制
发表时间：
1987
影响因子：
4.4
通讯作者：
B. Sherborne
中科院分区：
文献类型：
--
作者：
D. Andrews;B. Sherborne
提出了一种新的量子电动力学方法，该方法基于薛定谔表象，计算了相同分子间的能量转移速率。与这种表示中的现有方法相比，新的处理方法给出了明确的因果关系和节能结果。通过回到微扰理论，得到电偶极-电偶极相互作用张量的正确的、复杂的形式，而不求助于物理的、如果使用费米规则所必需的量子散射理论的“出射波”参数。这种方法也允许一个新的解释的时间顺序图的作用，这可能是有用的，在严格处理高阶合作过程。QED处理使用虚光子耦合，并结合了两步辐射转移的库仑、R−6依赖性和R−2依赖性特征。
A new quantum electrodynamical (QED) method is presented, based in the Schrodinger representation, for the calculation of the rate of energy transfer between identical molecules. In contrast to existing methods in this representation, the new treatment gives explicitly causal and energy‐conserving results. By returning to perturbation theory the correct, complex form for the electric dipole–electric dipole interaction tensor is obtained, without recourse to the physical, ‘‘outgoing wave’’ arguments of quantum scattering theory necessary if the Fermi rule is used. This method also allows a new interpretation for the role of the time‐ordered diagrams involved, which may be useful in the rigorous treatment of higher order cooperative processes. The QED treatment uses virtual photon coupling, and incorporates both the Coulombic, R−6 dependence, and the R−2 dependence characteristic of two‐step radiative transfer.