تقرير
Anomalous diffusion in viscosity landscapes
| العنوان: | Anomalous diffusion in viscosity landscapes |
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| المؤلفون: | Burgis, Markus, Schaller, Volker, Glässl, Martin, Kaiser, Benjamin, Köhler, Werner, Krekhov, Alexei, Zimmermann, Walter |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Statistical Mechanics |
| الوصف: | Anomalous diffusion is predicted for Brownian particles in inhomogeneous viscosity landscapes by means of scaling arguments, which are substantiated through numerical simulations. Analytical solutions of the related Fokker-Planck equation in limiting cases confirm our results. For an ensemble of particles starting at a spatial minimum (maximum) of the viscous damping we find subdiffusive (superdiffusive) motion. Superdiffusion occurs also for a monotonically varying viscosity profile. We suggest different substances for related experimental investigations. Comment: 15 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/13/4/043031 |
| URL الوصول: | http://arxiv.org/abs/1010.3115 |
| رقم الأكسشن: | edsarx.1010.3115 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/13/4/043031 |
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