NONEQUILIBRIUM SPATIAL CORRELATIONS IN CHEMICAL SYSTEMS: BEYOND ORNSTEIN–ZERNIKE

Junichi Wakou, Kazuo Kitahara, Marek Litniewski and Jerzy Gorecki ()
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Junichi Wakou: Institute for Theoretical Physics, University of Utrecht, 3508 TD Utrecht, The Netherlands
Kazuo Kitahara: International Christian University, 3-10-2 Osawa, Mitaka-shi, Tokyo 181-8585, Japan
Marek Litniewski: Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
Jerzy Gorecki: Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

International Journal of Modern Physics C (IJMPC), 2002, vol. 13, issue 09, 1253-1262

Abstract: In this paper we consider a chemical process, for which the reagent of interest decays shortly after it is created. For such a system the standard theory of nonequilibrium spatial correlations in the density fluctuations, which leads to Ornstein–Zernike type of expression, does not work. We compare results of molecular simulations with another theoretical description based on the assumption that the lifetime of the reagent is short enough to treat its motion as a ballistic rather than diffusive one.

Keywords: Chemical reaction; spatial correlations; density fluctuations (search for similar items in EconPapers)
Date: 2002
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DOI: 10.1142/S0129183102004108

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