6533b82dfe1ef96bd1291dbb

RESEARCH PRODUCT

Test of the semischematic model for a liquid of linear molecules

Christoph TheisPiero TartagliaRolf SchillingLinda FabbianFrancesco Sciortino

subject

PhysicsCorrelation function (statistical mechanics)Statistical Mechanics (cond-mat.stat-mech)Dynamics (mechanics)Soft Condensed Matter (cond-mat.soft)FOS: Physical sciencesLinear molecular geometryCenter of massStatistical physicsCondensed Matter - Soft Condensed MatterApproximate solutionCondensed Matter - Statistical Mechanics

description

We apply to a liquid of linear molecules the semischematic mode-coupling model, previously introduced to describe the center of mass (COM) slow dynamics of a network-forming molecular liquid. We compare the theoretical predictions and numerical results from a molecular dynamics simulation, both for the time and the wave-vector dependence of the COM density-density correlation function. We discuss the relationship between the presented analysis and the results from an approximate solution of the equations from molecular mode-coupling theory [R. Schilling and T. Scheidsteger, Phys. Rev. E 56 2932 (1997)].

10.1103/physreve.58.7272http://arxiv.org/abs/cond-mat/9804116