Effective Temperature in a Colloidal Glass
Statistical Mechanics
2010-09-15 v1 Soft Condensed Matter
Abstract
We study the Brownian motion of particles trapped by optical tweezers inside a colloidal glass (Laponite) during the sol-gel transition. We use two methods based on passive rheology to extract the effective temperature from the fluctuations of the Brownian particles. All of them give a temperature that, within experimental errors, is equal to the heat bath temperature. Several interesting features concerning the statistical properties and the long time correlations of the particles are observed during the transition.
Cite
@article{arxiv.0809.0136,
title = {Effective Temperature in a Colloidal Glass},
author = {Pierre Jop and Artyom Petrosyan and Sergio Ciliberto},
journal= {arXiv preprint arXiv:0809.0136},
year = {2010}
}
Comments
to be published in Philosophical Magazine