Non-gaussian, non-markov processes
- 1 January 1980
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 76, 761-766
- https://doi.org/10.1039/f29807600761
Abstract
A non-Gaussian treatment of the Mori theory is presented with the intention of explaining the results of recent computer simulations. The Mori equation is replaced by a multi-dimensional Markov process represented by a set of interrelated matrix equations. These are related straight-forwardly to a linear master equation and its Kramers–Moyal expansion. The non-Gaussian nature of the molecular dynamics results may then be represented by truncating the latter at third order, involving an extra operator Γ(1) L. This may be expanded in a matrix over the basis set of Hermite polynomials in terms of which may be represented eigenstates of the usual Fokker–Planck operator Γ(0) L.Keywords
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