124 citations · 185 across the 7 of their papers we have counts for
6 papers · 1 filter
The Jammed Phase of Infinitely Persistent Active Matter
M. C. Gandikota, Rituparno Mandal, Pinaki Chaudhuri +2
We study an extreme active matter system, which is essentially a dense assembly of athermal, soft and infinitely persistent active particles. Using extensive numerical simulations…
Stress Response of Jammed Solids: Prestress and Screening
Surajit Chakraborty, Jishnu N. Nampoothiri, Subhro Bhattacharjee +2
Unlike classical elasticity, where stresses arise from deformations relative to a stress-free reference configuration, rigidity in amorphous systems is maintained by disordered for…
Pinch-point Singularities in Stress-Stress Correlations Reveal Rigidity in Colloidal Gels
Albert Countryman, H. A. Vinutha, Fabiola Diaz Ruiz +3
We demonstrate that the spatial correlations of microscopic stresses in 2D model colloidal gels obtained in computer simulations can be quantitatively described by the predictions…
Rigid clusters in shear-thickening suspensions: a nonequilibrium critical transition
Aritra Santra, Michel Orsi, Bulbul Chakraborty +1
The onset and growth of rigid clusters in a two-dimensional (2D) suspension in shear flow are studied by numerical simulations. The suspension exhibits the lubricated-to-frictional…
Excitable Patterns in Active Nematics
L. Giomi, L. Mahadevan, B. Chakraborty +1
We analyze a model of mutually-propelled filaments suspended in a two-dimensional solvent. The system undergoes a mean-field isotropic-nematic transition for large enough filament…
Why Do Granular Materials Stiffen with Shear Rate? A Test of Novel Stress-Based Statistics
Robert P. Behringer, Dapeng Bi, Bulbul Chakraborty +2
Recent experiments exhibit a rate-dependence for granular shear such that the stress grows linearly in the logarithm of the shear rate, \dotγ. Assuming a generalized activated proc…