Matches in SemOpenAlex for { <https://semopenalex.org/work/W1980715940> ?p ?o ?g. }
- W1980715940 abstract "A nonequilibrium extension of Onsager's canonical theory of thermal fluctuations is employed to derive a self-consistent theory for the description of the statistical properties of the instantaneous local concentration profile $n(mathbf{r},t)$ of a colloidal liquid in terms of the coupled time-evolution equations of its mean value $overline{n}(mathbf{r},t)$ and of the covariance $ensuremath{sigma}(mathbf{r},{mathbf{r}}^{ensuremath{'}};t)ensuremath{equiv}overline{ensuremath{delta}n(mathbf{r},t)ensuremath{delta}n({mathbf{r}}^{ensuremath{'}},t)}$ of its fluctuations $ensuremath{delta}n(mathbf{r},t)=n(mathbf{r},t)ensuremath{-}overline{n}(mathbf{r},t)$. These two coarse-grained equations involve a local mobility function $b(mathbf{r},t)$ which, in its turn, is written in terms of the memory function of the two-time correlation function $C(mathbf{r},{mathbf{r}}^{ensuremath{'}};t,{t}^{ensuremath{'}})ensuremath{equiv}overline{ensuremath{delta}n(mathbf{r},t)ensuremath{delta}n({mathbf{r}}^{ensuremath{'}},{t}^{ensuremath{'}})}$. For given effective interactions between colloidal particles and applied external fields, the resulting self-consistent theory is aimed at describing the evolution of a strongly correlated colloidal liquid from an initial state with arbitrary mean and covariance ${overline{n}}^{0}(mathbf{r})$ and ${ensuremath{sigma}}^{0}(mathbf{r},{mathbf{r}}^{ensuremath{'}})$ toward its equilibrium state characterized by the equilibrium local concentration profile ${overline{n}}^{eq}(mathbf{r})$ and equilibrium covariance ${ensuremath{sigma}}^{eq}(mathbf{r},{mathbf{r}}^{ensuremath{'}})$. This theory also provides a general theoretical framework to describe irreversible processes associated with dynamic arrest transitions, such as aging, and the effects of spatial heterogeneities." @default.
- W1980715940 created "2016-06-24" @default.
- W1980715940 creator A5018344984 @default.
- W1980715940 creator A5066047976 @default.
- W1980715940 date "2010-12-14" @default.
- W1980715940 modified "2023-09-23" @default.
- W1980715940 title "General nonequilibrium theory of colloid dynamics" @default.
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- W1980715940 doi "https://doi.org/10.1103/physreve.82.061503" @default.
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