Effective temperatures in driven systems: static versus time-dependent relations.
Using simulations of glassy systems under steady-state shear, we compare effective temperatures obtained from static linear response with those from time-dependent fluctuation-dissipation relations. Although these two definitions are not expected to agree, we show that they yield the same answer over two and a half decades of effective temperature. This suggests that a more complete conceptual framework is necessary for effective temperatures in steady-state driven systems.
O'Hern
Corey S
CS
Department of Mechanical Engineering, Yale University, New Haven, CT 06520-8284, USA.
Liu
Andrea J
AJ
Nagel
Sidney R
SR