2021 Impact factor 1.624
Soft Matter and Biological Physics
Eur. Phys. J. E 9, 265-269 (2002)
DOI: 10.1140/epje/i2002-10089-9

Thermodynamics and effective temperatures in sheared granular matter and emulsions

H. Makse

Levich Institute and Physics Department, City College of New York, New York, NY 10031, USA


(Received 25 April 2002 and Received in final form 28 October 2002 / Published online: 23 December 2002)

Recent theories postulate that the non-equilibrium behavior of systems experiencing jamming or structural arrest could be described by equilibrium thermodynamic concepts. If a thermodynamic framework can describe the behavior of systems far from equilibrium, then an effective temperature with a true thermodynamic meaning exists as a key parameter in characterizing the material's properties. In order to examine the validity of the thermodynamics for jammed systems, we perform a numerical experiment with a realistic granular matter model specially conceived to be reproducible in the laboratory. The results strongly support the thermodynamic picture.

81.05.Rm - Porous materials; granular materials.
83.80.Lz - Physiological materials (e.g. blood, collagen, etc.).

© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2002