Equilibrium phase diagram of a randomly pinned glass-former.

ABSTRACT: We use computer simulations to study the thermodynamic properties of a glass-former in which a fraction c of the particles has been permanently frozen. By thermodynamic integration, we determine the Kauzmann, or ideal glass transition, temperature [Formula: see text] at which the configurational entropy vanishes. This is done without resorting to any kind of extrapolation, i.e., [Formula: see text] is indeed an equilibrium property of the system. We also measure the distribution function of the overlap, i.e., the order parameter that signals the glass state. We find that the transition line obtained from the overlap coincides with that obtained from the thermodynamic integration, thus showing that the two approaches give the same transition line. Finally, we determine the geometrical prope

SUBMITTER: Ozawa M 

PROVIDER: S-EPMC4460508 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature