A multidimensional Fokker-Planck-Kramers equation for rotational relaxation of small solutes in complex liquids is developed wherein collective solvent effects are explicitly represented by rotating torques and stochastic fields. A simplified version of the model is applied to interpret the breakdown of the Hubbard-Einstein relation at high viscosities.
A many-body stochastic approach to rotational motions in liquids - A reassessment of the Hubbard-Einstein relation
POLIMENO, ANTONINO;
1990
Abstract
A multidimensional Fokker-Planck-Kramers equation for rotational relaxation of small solutes in complex liquids is developed wherein collective solvent effects are explicitly represented by rotating torques and stochastic fields. A simplified version of the model is applied to interpret the breakdown of the Hubbard-Einstein relation at high viscosities.File in questo prodotto:
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