How does the relaxation of a supercooled liquid depend on its microscopic dynamics?

Details How does the relaxation of a supercooled liquid depend on its microscopic dynamics? How does the relaxation of a supercooled liquid depend on its microscopic dynamics?

1998-05-17

arxiv.org/abs/cond-mat/9805200v1

Phys. Rev. Lett. 81, 4404 (1998)

Physics

Condensed Matter

Statistical Mechanics

6 pages of Latex, 4 figures

Scientific paper

10.1103/PhysRevLett.81.4404

Using molecular dynamics computer simulations we investigate how the relaxation dynamics of a simple supercooled liquid with Newtonian dynamics differs from the one with a stochastic dynamics. We find that, apart from the early beta-relaxation regime, the two dynamics give rise to the same relaxation behavior. The increase of the relaxation times of the system upon cooling, the details of the alpha-relaxation, as well as the wave vector dependence of the Edwards-Anderson-parameters are independent of the microscopic dynamics.

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