Structure, dynamics and multiple length-scales in network-forming materials

Dynamics and correlation length scales of a glass-forming liquid in quiescent and sheared conditions.

We numerically study dynamics and correlation length scales of a colloidal liquid in both quiescent and sheared conditions to further understand the origin of slow dynamics and dynamic heterogeneity in glass-forming systems. The simulation is performed in a weakly frustrated two-dimensional liquid, where locally preferred order is allowed to develop with increasing density. The four-point densi...

Polymer science and biology: structure and dynamics at multiple scales.

I give a brief, biased survey of some recent problems in molecular and cell biology from the perspective of physical science, with a few answers, but a great many questions, challenges and opportunities.

Multiple time scales hidden in heterogeneous dynamics of glass-forming liquids.

A multitime probing of density fluctuations is introduced to investigate hidden time scales of heterogeneous dynamics in glass-forming liquids. Molecular-dynamics simulations for simple glass-forming liquids are performed and a three-time correlation function is numerically calculated for general time intervals. It is demonstrated that the three-time correlation function is sensitive to the het...

Localization Length Scales of Triplet Excitons in Singlet Fission Materials

Two Topics in Ab Initio Molecular Dynamics: Multiple Length Scales and Exploration of Free-Energy Surfaces

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