Diffusion of Classical Particles in a Random Medium. II.Nonlinear Response

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概要

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• A formalism developed in a preceding paper [J. Phys. Soc. Jpn. 51 (1982) 1482.1is extended and applied to a nonlinear response of a single classical particlediffusing in a random array of rnedium particles wltich behave as obstructions ortraps. The expressions of the mobility in second attd inverse-second order in thestrength of the external force are derived on the basis of a given radial distribu-tion function of medium particles. The mobility is calculated explicitly for hard-sphere and attractive Gaussian core systems and influence of short-range orderbetween medium particles is revealed. For hard-sphere systems, the calculationsshow that the strong external force causes the capture of the diffusing particle ingaps formed by medium particles.

• 社団法人日本物理学会の論文
• 1982-05-15

著者

• Ohtsuki Toshiya

  Department Of Applied Physics Faculty Of Engineering University Of Tokyo

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