4 citations · 9 across the 10 of their papers we have counts for
10 papers
Collective dynamics of chemo-mechanical colloidal chains with active tips
Arvin Gopal Subramaniam, Rajesh Singh
We report a study of the emergent dynamics arising in two-dimensional suspensions of semi-flexible chains whose tip is chemically active, generating a phoretic field. By varying th…
Mechanics and statistics of a solvable model of an autophoretic colloidal chain
Arvin Gopal Subramaniam, Rajesh Singh
Equilibrium statistical mechanics owes much of its analytical tractability to symmetry: detailed balance, gradient flows, and the resulting vanishing of steady-state entropy produc…
Inferring activity from fluid flow in continuum models of active matter
Aditya Mohapatra, Sagarika Adhikary, Rajesh Singh
Active matter systems are driven out of thermodynamic equilibrium by localized, microscale energy dissipation. While hydrodynamic continuum frameworks are highly successful at simu…
Emergent flocking dynamics in chemorepulsive active colloids: Interplay of disorder and noise
Sagarika Adhikary, Rajesh Singh
Recent studies of active colloidal matter have revealed that a global polar order can arise from chemorepulsive interactions among particles without any explicit alignment interact…
Optimal transport and control of an active particle near a plane wall
Utkarsh Maurya, Kavya Swaminathan, Ejaz Ashraf +1
The control of active colloidal particles via optical traps is a cornerstone for research of matter at the micron and nanometer scale. A central challenge in this domain is the der…
Flocking transition in phoretically interacting active particles with pinning disorder
Sagarika Adhikary, Arvin Gopal Subramaniam, Rajesh Singh
Recent studies in the collective behavior of active colloids have shown that a global polar order may emerge due to long-ranged chemo-repulsive interactions between them. Here, we…
Shape-specific fluctuations of an active colloidal interface
Arvin Subramaniam, Tirthankar Banerjee, Rajesh Singh
Motivated by a recently synthesizable class of active interfaces formed by linked self--propelled colloids, we investigate the dynamics and fluctuations of a phoretically (chemical…
Scattering Angle Dependence of Fano Resonance Profiles in Cold Atomic Collisions Analyzed with the Complex Valued Parameter
Tanmay Singh, Raj Aryan Singh, Fumihiro Koike +2
The scattering angle dependence of Fano resonance profiles in cold atomic collisions has been theoretically studied. A complex-valued parameter with an analytical formula des…
Minimal mechanism for flocking in phoretically interacting active particles
Arvin Gopal Subramaniam, Sagarika Adhikary, Rajesh Singh
Coherent collective motion is a widely observed phenomenon in active matter systems. Here, we report a flocking transition mechanism in a system of chemically interacting active co…
Rigid flocks, undulatory gaits, and chiral foldamers in a chemically active polymer
Arvin Gopal Subramaniam, Manoj Kumar, Shashi Thutupalli +1
Active matter systems - such as a collection of active colloidal particles - operate far from equilibrium with complex inter-particle interactions that govern their collective dyna…