A quenched trap model for non-Gaussian diffusion  

作　　者：Liang Luo Ming Yi 

机构地区：[1]Department of Physics, College of Science, Huazhong Agricultural University [2]Institute of Applied Physics, Huazhong Agricultural University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2016年第12期78-79,共2页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities (Grant No. 2662015QD005);Huazhong Agricultural University Scientific & Technological Self-innovation Foundation (Grant No. 2015RC021);the National Natural Science Foundation of China (Grant Nos. 91330113, 11275259 and 11675060)

摘　　要：The experiments usually cannot fully arrive at the self- averaging time scale, even if some of the tracers can leave the initial basins. It is thus important to study the crossover from single basin non-Gaussian behavior to multi-basin Gaussian behavior. The crossover depends on complicated properties of the heterogeneous environment, which are not well under- stood yet. Our simple model focuses on the spatial correla- tion of the environment, which gives a theoretical framework to investigate the anomalous diffusion in heterogeneous envi- ronment. It is still an open question whether the dimension- ality of the environment is crucial to the results. To further compare the model with experiments, more detailed investi- gation is also required.Dear Editors,Brownian motion is well-known for its linear growing meansquare displacement(MSD)

关 键 词：exp FIGURE 

分 类 号：O552.1[理学—热学与物质分子运动论]