11,257 research outputs found

    A Microscopic Model of the Stokes-Einstein Relation in Arbitrary Dimension

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    The Stokes-Einstein relation (SER) is one of the most robust and widely employed results from the theory of liquids. Yet sizable deviations can be observed for self-solvation, which cannot be explained by the standard hydrodynamic derivation. Here, we revisit the work of Masters and Madden [J. Chem. Phys. 74, 2450-2459 (1981)], who first solved a statistical mechanics model of the SER using the projection operator formalism. By generalizing their analysis to all spatial dimensions and to partially structured solvents, we identify a potential microscopic origin of some of these deviations. We also reproduce the SER-like result from the exact dynamics of infinite-dimensional fluids.Comment: 20 page

    Behind Valencia: A Contemporary Play

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    SYNOPSIS The purpose of this play is to highlight the length that modern females go to in order to maintain a desired appearance, especially across social media. These desired appearances are influenced by the glamorous and unrealistic looks and physiques that are prevalent in the media. Essentially, the primary goal of these characters is to attract the attention of their male counterparts because of the gender roles society promotes. This shallow lifestyle can be completely consuming for impressionable, young females

    Recent Advances in the Theory and Simulation of Model Colloidal Microphase Formers

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    This mini-review synthesizes our understanding of the equilibrium behavior of particle models with short-range attractive and long-range repulsive (SALR) interactions. These models, which can form stable periodic microphases, aim to reproduce the essence of colloidal suspensions with competing interactions. Ordered structures, however, have yet to be obtained in experiments. In order to better understand the hurdles to periodic microphase assembly, marked theoretical and simulation advances have been made over the last few years. Here, we present recent progress in the study of microphases in models with SALR interactions using liquid-state theory and density-functional theory as well as numerical simulations. Combining these various approaches provides a description of periodic microphases, and give insights into the rich phenomenology of the surrounding disordered regime. Three additional ongoing research directions in the thermodynamics of models with SALR interactions are also presented
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