Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 84: Glasses and Glas transition (joint session DY/CPP)

CPP 84.1: Vortrag

Freitag, 16. März 2018, 10:00–10:15, BH-N 334

Can the glass transition occur in non-equilibrium? — •Michael Schmiedeberg — Institut für Theoretische Physik 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany

Recently, there have been great advances in the simulation of equilibrated hard sphere systems up to high densities that can even exceed the athermal jamming packing fraction (see, e.g., [1]). As a consequence, several researchers claim that all previous simulations were obsolete and that it even was not allowed to do further studies of non-equilibrium systems.

In my contribution I want to motivate that by limiting the research to systems in equilibrium one misses important and interesting phenomena that exist in non-equilibrium systems, e.g., ageing, avoidance of crystallization, history-dependence, as well as many other properties of the dynamical glass transition and of glasses. I argue that dynamical glasses obtained by rapid quenches can be significantly different from ideal, structural glasses that might occur in equilibrated systems.

[1] A. Ninarello, L. Berthier, and D. Coslovich, Phys. Rev. X 7, 021039 (2017).