On an imaginary exponential functional of Brownian motion

On an imaginary exponential functional of Brownian motion
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关于布朗运动的虚指数函数

DOI:
10.1088/1751-8113/44/17/175003
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发表时间:
2011
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
通讯作者:
J. Luck
J. Luck
中科院分区:
--
文献类型:
--
作者:
D. Gredat;I. Dornic;J. Luck

文献摘要

被引文献

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我们研究了一个随机积分,它提供了布朗运动虚数指数函数的自然示例。这种泛函出现在反应扩散系统的 Doi-Peliti 形式主义中的二元湮灭过程的研究中。主要强调通常的 Langevin 方法与基于 Kesten 变量和其他一维无序系统的相似性的另一种方法之间的互补性。尽管这些途径都不能完全解决问题,但我们已经获得了描述各种感兴趣的制度的结果集合。
We investigate a random integral which provides a natural example of an imaginary exponential functional of Brownian motion. This functional shows up in the study of the binary annihilation process, within the Doi–Peliti formalism for reaction-diffusion systems. The main emphasis is put on the complementarity between the usual Langevin approach and another approach based on the similarity with Kesten variables and other one-dimensional disordered systems. Even though neither of these routes leads to the full solution of the problem, we have obtained a collection of results describing various regimes of interest.