Direct numerical observation of anomalous diffusion in random media

被引：10
|
作者：
Pham, V [1 ]
Deem, MW [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Chem Engn, Los Angeles, CA 90095 USA
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1998年 / 31卷 / 35期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1088/0305-4470/31/35/005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present computer simulations of anomalous diffusion, [r(2)(t)] similar to at(1-8), in two dimensions. The Monte Carlo calculations are in excellent agreement with previous renormalization group calculations. Interestingly, use of a high-quality pseudorandom number generator is necessary to observe the anomalous diffusion. A linear-feedback, shift-register method leads to incorrect, superdiffusive motion of the random walkers.
引用
收藏
页码：7235 / 7247
页数：13
相关论文
共 50 条
  • [31] OBSERVATION OF ANOMALOUS DIFFUSION OF PROTEINS NEAR SURFACES
    RAMSDEN, JJ
    JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (08): : 3388 - 3391
  • [32] Numerical study of strong anomalous diffusion
    Castiglione, P
    Mazzino, A
    Muratore-Ginanneschi, P
    PHYSICA A, 2000, 280 (1-2): : 60 - 68
  • [33] Diffusion and multiplication in random media
    Krapivsky, P. L.
    Mallick, K.
    JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2011,
  • [34] DIRECT OBSERVATION OF (101) ANOMALOUS SLIP IN MOLYBDENUM
    SAKA, H
    MATSUI, H
    NODA, K
    KIMURA, H
    IMURA, T
    SCRIPTA METALLURGICA, 1976, 10 (01): : 59 - 62
  • [35] Anomalous random walks and diffusions: From fractals to random media
    Kumagai, Takashi
    PROCEEDINGS OF THE INTERNATIONAL CONGRESS OF MATHEMATICIANS (ICM 2014), VOL IV, 2014, : 75 - 94
  • [36] ANOMALOUS DIFFUSION IN A RANDOM VELOCITY-FIELD
    GAVEAU, B
    SCHULMAN, LS
    JOURNAL OF STATISTICAL PHYSICS, 1992, 66 (1-2) : 375 - 383
  • [37] ANOMALOUS DIFFUSION OF SOLITONS IN RANDOM-SYSTEMS
    IIZUKA, T
    PHYSICS LETTERS A, 1993, 181 (01) : 39 - 42
  • [38] Normal and anomalous diffusion in random potential landscapes
    Camboni, F.
    Sokolov, I. M.
    PHYSICAL REVIEW E, 2012, 85 (05):
  • [39] Theoretical investigation of anomalous diffusion in a random lattice
    Ishii, T
    SOLID STATE COMMUNICATIONS, 2000, 116 (06) : 327 - 331
  • [40] DIRECT OBSERVATION OF ANOMALOUS ELECTRON-DIFFUSION DUE TO SMALL-SCALE MAGNETIC TURBULENCE IN A TOKAMAK
    TAKAMURA, S
    OHNISHI, N
    IWAI, K
    OKUDA, T
    PHYSICAL REVIEW LETTERS, 1986, 56 (19) : 2044 - 2047
12345