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- Gregg Lois, AnaÃ«l LemaÃ®tre, Jean M. Carlson
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2005

We numerically and theoretically study the macroscopic properties of dense, sheared granular materials. In this process we first consider an invariance in Newton's equations, explain how it leads toâ€¦ (More)

Diverging correlation lengths on either side of the jamming transition are used to formulate a rheological model of granular shear flow, based on the propagation of stress through force chainâ€¦ (More)

- Gregg Lois, AnaÃ«l LemaÃ®tre, Jean M. Carlson
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2007

Numerical simulations are used to test the kinetic theory constitutive relations of inertial granular shear flow. These predictions are shown to be accurate in the dilute regime, where only binaryâ€¦ (More)

- Gregg Lois, A. LemÃ¢Ä±tre, Jean M. Carlson
- 2006

â€“ We examine the binary collision assumption of hard-sphere kinetic theory in numerical simulations of sheared granular materials. For a wide range of densities and restitution coefficients weâ€¦ (More)

- Gregg Lois, AnaÃ«l LemaÃ®tre, Jean M. Carlson
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2007

We investigate the emergence of correlations in granular shear flow. By increasing the density of a simulated granular flow, we observe a transition from a dilute regime, where interactions areâ€¦ (More)

- Gregg Lois, Jerzy Blawzdziewicz, Corey S O'Hern
- Physical review letters
- 2008

We numerically study the jamming transition in particulate systems with attraction by investigating their mechanical response at zero temperature (T=0). We find three regimes of mechanical behaviorâ€¦ (More)

- Gregg Lois, Jerzy Blawzdziewicz, Corey S O'Hern
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2010

We perform simulations of model proteins to study folding on rugged energy landscapes. We construct "first-passage" networks as the system transitions from unfolded to native states. The nodes andâ€¦ (More)

- Gregg Lois, Jie Zhang, +4 authors Robert P Behringer
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

We study the response of dry granular materials to external stress using experiment, simulation, and theory. We derive a Ginzburg-Landau functional that enforces mechanical stability and positivityâ€¦ (More)

- Gregg Lois, AnaÃ«l LemaÃ®tre, Jean M. Carlson
- Computers & Mathematics with Applications
- 2008

We investigate the error induced by considering only binary collisions in the momentum transport of hard-sphere granular materials, as is done in kinetic theories. In this process, we first present aâ€¦ (More)

- Gregg Lois, Jerzy Blawzdziewicz, Corey S O'Hern
- Physical review letters
- 2009

We identify a link between the glass transition and percolation of regions of mobility in configuration space. We find that many hallmarks of glassy dynamics, for example, stretched-exponentialâ€¦ (More)