Application of the Novikov-Furutsu theorem to the random acceleration problem
Application of the Novikov-Furutsu theorem to the random acceleration problem
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Novikov-Furutsu定理在随机加速问题中的应用
DOI：
10.1088/0032-1028/20/4/006
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
I. Cook
中科院分区：
文献类型：
--
作者：
I. Cook
用一种新的方法处理了被湍流电场加速的粒子的平均传播子的计算问题。利用Novikov（1965）和Furutsu（1963）的一个定理，将问题的形式转化为一个无规场不显式出现的形式。一个层次的近似设计收敛于一个封闭的方程的传播。这导致了一个类似杜普利的理论，但在共振函数中的传播子是短时间的，而不是长时间的。
The problem of calculating the average propagator of a particle accelerated by a turbulent electric field is treated in a new way. Using a theorem of Novikov (1965) and Furutsu (1963), the formulation of the problem is transformed into one in which the random field does not appear explicitly. A hierarchy of approximations is devised which converges on a closed equation for the propagator. This leads to a Dupree-like theory, but with short-time, rather than long-time, propagators in the resonance functions.