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cond-mat.soft2026
Defect Localization by Vanishing Deviatoric Stress in Active Nematics
Sameer Kumar, Manas Khan
Collective stress generation in cellular monolayers is a key phenomenological process governing coordinated migration and emergent multicellular dynamics. We employ a generic activ…
cond-mat.soft2025
Hydrodynamic bend instability of motile particles on a substrate
Sameer Kumar, Niels de Graaf Sousa, Amin Doostmohammadi
The emergence of hydrodynamic bend instabilities in ordered suspensions of active particles is widely observed across diverse living and synthetic systems, and is considered to be…