Tracking Coupled Granular Temperature and Entropy Dynamics in Granular Materials via Dielectric Spectroscopy (opens in new tab)

In glass-forming liquids, structural dynamics are governed by configurational entropy and temperature, with dielectric relaxation time scaling alongside structural relaxation time as described by the Adam-Gibbs (AG) model. Under Edwards's athermal statistical thermodynamics, a modified AG law similarly governs granular matter, provided that granular temperature and configurational entropy are appropriately defined. This study investigates whet...