2 citations · 4 across the 12 of their papers we have counts for
13 papers
Extreme Events in an Active Fluid Medium
Joydeep Das, Abhishek Chaudhuri, Sudeshna Sinha
We observe the emergence of extreme events in an active fluid involving two distinct chemical species that regulate active stress. One species is slow diffusing and the other is fa…
Semiflexible Ring Polymers on Active Motor Beds: Nonequilibrium Dynamics and Conformations
Sandip Roy, Abhishek Chaudhuri, Anil Kumar Dasanna
A semiflexible ring polymer on a motor-protein bed exhibits activity- and processivity-dependent rotational and conformational dynamics that are not captured by linear-chain behavi…
Spectral Signatures of Active Fluctuations in Semiflexible Polymers
Love Grover, Anil Kumar Dasanna, Abhishek Chaudhuri
We study how an active bath is transduced into the internal fluctuation spectrum of a semiflexible polymer. Starting from the statistics of active forces exerted by an explicit bat…
Exact dynamics and dimensional effects in torque-driven trapped active Brownian particles
Anweshika Pattanayak, Amir Shee, Abhishek Chaudhuri +1
The interplay of chirality, self-propulsion, and confinement generates pronounced non-equilibrium fluctuations, with higher-order moments encoding the shape of the position distrib…
Non-reciprocal visual perception and polar alignment drive collective states in chiral active particles
Diganta Bhaskar, Abhishek Chaudhuri, Anil Kumar Dasanna
Self-propelled particles rarely move in straight lines; environmental interactions, shape asymmetry, and intrinsic torques generically induce curved or fluctuating trajectories. In…
Inertia-chirality interplay in active Brownian motion: exact dynamics and phase maps
Anweshika Pattanayak, Sandip Roy, Abhishek Chaudhuri
We present an exact, time-resolved theory for a two-dimensional chiral active Brownian particle (cABP) with translational inertia. Using a Laplace-transform moment hierarchy, we de…
From spirals to flagellar beating: How pivot-like defects control semiflexible filament dynamics in motility assays
Sandip Roy, Debasish Chaudhuri, Abhishek Chaudhuri
We demonstrate that internal pivot-like defects, arising from rigor mutant motor proteins that bind without stepping, fundamentally reshape the dynamics of semiflexible filaments i…
Chirality, confinement and dimensionality govern re-entrant transitions in active matter
Anweshika Pattanayak, Amir Shee, Debasish Chaudhuri +1
The non-equilibrium dynamics of individual chiral active particles underpin the complex behavior of chiral active matter. Here we present an exact analytical framework, supported b…
Self-organized fractal architectures driven by motility-dependent chemotactic feedback
Subhashree Subhrasmita Khuntia, Debasish Chaudhuri, Abhishek Chaudhuri
Complex spatial patterns in biological systems often arise through self-organization without a central coordination, guided by local interactions and chemical signaling. In this st…
Confinement and Activity-Driven Dynamics of Semiflexible Polymers in Motility Assays
Sandip Roy, Abhishek Chaudhuri, Anil Kumar Dasanna
We investigate the nonequilibrium dynamics of semiflexible polymers driven by motor proteins (MPs) in two-dimensional motility assays under harmonic confinement. Using a coarse-gra…
From Order to Chimeras: Unraveling Dynamic Patterns in Active Fluids with Nonlinear Growth
Joydeep Das, Abhishek Chaudhuri, Sudeshna Sinha
We explore pattern formation in an active fluid system involving two chemical species that regulate active stress: a fast-diffusing species () and a slow-diffusing species ()…
Inertia and Activity: Spiral transitions in semi-flexible, self-avoiding polymers
Chitrak Karan, Abhishek Chaudhuri, Debasish Chaudhuri
We consider a two-dimensional, tangentially active, semi-flexible, self-avoiding polymer to find a dynamical re-entrant transition between motile open chains and spinning achiral s…
Hydrodynamics of passive and active rods in a temperature gradient
Anweshika Pattanayak, Abhishek Chaudhuri
Temperature plays a very important role in various biological processes like the evolution of life, as it is anticipated that early life existed in a very hot environment that even…