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:
影响因子:
--
通讯作者:
J. Luck
中科院分区:
文献类型:
--
作者:
D. Gredat;I. Dornic;J. Luck
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.