Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-10-12
Phys. Rev. Lett. 89, 095702 (2002)
Physics
Condensed Matter
Statistical Mechanics
Version accepted for publication - Physical Review Letters
Scientific paper
10.1103/PhysRevLett.89.095702
The predictions of a nonequilibrium schematic mode-coupling theory developed to describe the nonlinear rheology of soft glassy materials have been numerically challenged in a sheared binary Lennard-Jones mixture. The theory gives an excellent description of the stress/temperature `jamming phase diagram' of the system. In the present paper, we focus on the issue of an effective temperature Teff for the slow modes of the fluid, as defined from a generalized fluctuation-dissipation theorem. As predicted theoretically, many different observables are found to lead to the same value of Teff, suggesting several experimental procedures to measure Teff. New, simple experimental protocols to access Teff from a generalized equipartition theorem are also proposed, and one such experiment is numerically performed. These results give strong support to the thermodynamic interpretation of Teff and make it experimentally accessible in a very direct way.
Barrat Jean Louis
Berthier Ludovic
No associations
LandOfFree
Shearing a Glassy Material: Numerical Tests of Nonequilibrium Mode-Coupling Approaches and Experimental Proposals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Shearing a Glassy Material: Numerical Tests of Nonequilibrium Mode-Coupling Approaches and Experimental Proposals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shearing a Glassy Material: Numerical Tests of Nonequilibrium Mode-Coupling Approaches and Experimental Proposals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-327673