Local fluctuations in an aging glass
K. S. Sinnathamby, H. Oukris, and N. E. Israeloff
TL;DR
This study investigates nanoscale polarization fluctuations in an aging polymer glass, revealing increased non-Gaussian noise and stronger correlations during aging compared to equilibrium, thus providing insights into the microscopic dynamics of glass aging.
Contribution
It presents the first measurement of nanoscale polarization noise fluctuations during aging in a polymer glass, highlighting changes in noise statistics and correlations.
Findings
Noise spectral density variance increases during aging
Noise becomes more non-Gaussian during aging
Stronger correlations observed in aging state
Abstract
Polarization fluctuations were measured in nanoscale volumes of a polymer glass during aging following a temperature quench through the glass transition. Statistical properties of the noise were studied in equilibrium and during aging. The noise spectral density had a larger temporal variance during aging, i.e. the noise was more non-Gaussian, demonstrating stronger correlations during aging.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.