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Exploring the Gillis model: a discrete approach to diffusion in logarithmic potentials
Journal of Statistical Mechanics: Theory and Experiment ( IF 2.4 ) Pub Date : 2020-11-10 , DOI: 10.1088/1742-5468/abbed6 Manuele Onofri 1, 2 , Gaia Pozzoli 1, 2 , Mattia Radice 1, 2 , Roberto Artuso 1, 2
Journal of Statistical Mechanics: Theory and Experiment ( IF 2.4 ) Pub Date : 2020-11-10 , DOI: 10.1088/1742-5468/abbed6 Manuele Onofri 1, 2 , Gaia Pozzoli 1, 2 , Mattia Radice 1, 2 , Roberto Artuso 1, 2
Affiliation
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.
中文翻译:
探索 Gillis 模型:对数势中扩散的离散方法
60 多年前推出的 Gillis 模型是一种具有位置相关漂移的非均匀随机游走。尽管在物理和数学文献中都被简洁地引用,但它提供了为数不多的随机系统示例之一,尽管缺乏平移不变性,但允许许多精确结果。我们展示了这种模型的新旧结果,此外,我们展示了在对数势存在下扩散粒子的离散版本。
更新日期:2020-11-10
中文翻译:
探索 Gillis 模型:对数势中扩散的离散方法
60 多年前推出的 Gillis 模型是一种具有位置相关漂移的非均匀随机游走。尽管在物理和数学文献中都被简洁地引用,但它提供了为数不多的随机系统示例之一,尽管缺乏平移不变性,但允许许多精确结果。我们展示了这种模型的新旧结果,此外,我们展示了在对数势存在下扩散粒子的离散版本。