Nonuniversal Diffusion Exponent for a Soft Percolation Process in Three Dimensions : Condensed Matter: Structure, etc.

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概要

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• The diffusion property of a soft percolation process in three dimensions is studied. The jump rate w of a random walker between two sites distributed randomly in space is assumed to fall off with the distance r as w 〜 [1 - (r/r_0)]^α, where r_0 is a cutoff length. The diffusion exponent d_w is determined by a new computational approach using the exact expression for mean-square displacement, (r^2(t)), of a random walker on a single percolation cluster. The diffusion exponent d_w is shown to depend on α, deviating gradually from the value for α = O.

• 社団法人日本物理学会の論文
• 2000-10-15

著者

• Odagaki Takashi

  Department Of Chemistry Faculty Of Science Kyoto University

• Odagaki Takashi

  Department Of Physics Kyushu University

• HARA Yoshihiko

  Department of Physics, Kyushu University

• Hara Yoshihiko

  Department Of Physics Kyushu University

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