corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 89 » Issue 9
< Previous Article | Next Article >

Phys. Rev. Lett. 89, 095703 (2002) [4 pages]

Effective Temperatures of a Driven System Near Jamming

Download: PDF (158 kB) Buy this article Export: BibTeX or EndNote (RIS)

Ian K. Ono1, Corey S. O’Hern1,2, D. J. Durian3, Stephen A. Langer4, Andrea J. Liu1, and Sidney R. Nagel2
1Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095
2James Franck Institute, The University of Chicago, Chicago, Illinois 60637
3Department of Physics and Astronomy, University of California, Los Angeles, California 90095
4Information Technology Laboratory, NIST, Gaithersburg, Maryland 20899

Received 12 October 2001; published 8 August 2002

Fluctuations in a model of a sheared, zero-temperature foam are studied numerically. Five different quantities that independently reduce to the true temperature in an equilibrium thermal system are calculated. One of the quantities is calculated up to an unknown coefficient. The other four quantities have the same value and all five have the same shear-rate dependence. These results imply that statistical mechanics is useful for the system even though it is far from thermal equilibrium.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.095703
DOI:
10.1103/PhysRevLett.89.095703
PACS:
64.70.Pf, 82.70.–y, 83.80.Iz
 
< Previous Article | Next Article >