دورية أكاديمية
Subdiffusion–Superdiffusion Random-Field Transition
| العنوان: | Subdiffusion–Superdiffusion Random-Field Transition |
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| المؤلفون: | Alexander Iomin |
| المصدر: | Fractal and Fractional, Vol 7, Iss 10, p 745 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Thermodynamics LCC:Mathematics LCC:Analysis |
| مصطلحات موضوعية: | comb model, Edwards–Wilkinson equation, stochastic Fokker–Planck equation, fractional Edwards–Wilkinson equation, stochastic acceleration, Thermodynamics, QC310.15-319, Mathematics, QA1-939, Analysis, QA299.6-433 |
| الوصف: | A contaminant spreading affected by a random field at boundaries in the comb geometry is considered. The physical effect of the random boundary conditions results in increasing a transport exponent such that the mean squared displacement increases with time from t12 to t12+5α/2 for real 0≤α≤1. This stochastic acceleration due to these space-time-dependent boundary conditions leads to a transition from subdiffusion to superdiffusion. Experimentally, it can be realized by controlling the boundary conditions of 2D diffusion in the comb geometry. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2504-3110 |
| Relation: | https://www.mdpi.com/2504-3110/7/10/745; https://doaj.org/toc/2504-3110 |
| DOI: | 10.3390/fractalfract7100745 |
| URL الوصول: | https://doaj.org/article/41f6e201e0d64fbfaf1d4c6123c7b28b |
| رقم الأكسشن: | edsdoj.41f6e201e0d64fbfaf1d4c6123c7b28b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25043110 |
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| DOI: | 10.3390/fractalfract7100745 |