论文标题

探索吉利斯模型:一种离散的分散方法

Exploring the Gillis model: a discrete approach to diffusion in logarithmic potentials

论文作者

Onofri, Manuele, Pozzoli, Gaia, Radice, Mattia, Artuso, Roberto

论文摘要

吉利斯(Gillis)模型于60多年前引入,是一个非均匀的随机步行,其位置依赖性漂移。尽管在物理和数学文献中都引用了简单的引用,但它提供了少数几个随机系统的例子之一,尽管缺乏翻译不变性,但允许许多确切的结果。我们为这种模型提供了旧的和新颖的结果,此外,我们表明的是在存在对数电位的情况下的扩散粒子的离散版本。

Gillis model, introduced more than 60 years ago, is a non-homogeneous random walk with a position dependent drift. Though parsimoniously cited both in the physical and mathematical literature, it provides one of the very few examples of a stochastic system allowing for a number of exact result, although lacking translational invariance. We present old and novel results for such model, which moreover we show represents a discrete version of a diffusive particle in the presence of a logarithmic potential.

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