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  1. A500 情報学部/情報学研究科・情報文化学部・情報科学研究科
  2. A500a 雑誌掲載論文
  3. 学術雑誌

Positional order and diffusion processes in particle systems

http://hdl.handle.net/2237/7149
c9d9c4ae-e245-408a-b00f-3ceba3ef59c9
名前 / ファイル ライセンス アクション
PhysRevE_74_030201.pdf PhysRevE_74_030201.pdf (83.0 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2006-11-30
タイトル
タイトル Positional order and diffusion processes in particle systems
著者 Watanabe, Hiroshi

× Watanabe, Hiroshi

WEKO 14386

Watanabe, Hiroshi

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Yukawa, Satoshi

× Yukawa, Satoshi

WEKO 14387

Yukawa, Satoshi

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Ito, Nobuyasu

× Ito, Nobuyasu

WEKO 14388

Ito, Nobuyasu

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権利
権利情報 Copyright: American Physical Society, All rights reserved.
抄録
内容記述 The relaxation of a nonequilibrium solid to a fluid is determined by observing the positional order parameter in Monte Carlo simulations, and discussed based on diffusion processes in the hard-particle systems. From the cumulant expansion up to the second order, the relation between the positional order parameter Ψ and the mean square displacement <u^2_i> is obtained to be Ψ~ exp(−K^2<u^2_i>/2d) with a reciprocal vector K and the dimension of the system d. On the basis of this relation, the positional order should decay exponentially as Ψ ~ exp(−K^2Dt) when the system involves normal diffusion with a diffusion constant D. A diffusion process with swapping positions of particles is also discussed. The swapping of particles contributes to the higher orders of the cumulants, and swapping positions allows particles to diffuse without destroying the positional order while the normal diffusion destroys it.
内容記述タイプ Abstract
出版者
出版者 The American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1103/PhysRevE.74.030201
ISSN
収録物識別子タイプ ISSN
収録物識別子 1539-3755
書誌情報 Physical Review E

巻 74, 号 3, p. 030201-030201, 発行日 2006-09
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/7149
識別子タイプ HDL
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