37 citations · 112 across the 12 of their papers we have counts for
12 papers
Phase separation by polar active transport
Sudipta Pattanayak, Alfredo Sciortino, Laurent Blanchoin +2
We propose an active Cahn-Hilliard theory for the dynamics of a new type of phase transition where the driving force is not the direct interactions between the two separating compo…
Synchronous and Asynchronous Updates of Active Ising Spins in One Dimension
Anish Kumar, Sudipta Pattanayak, R. K. Singh +1
How do update rules affect the dynamical and steady state properties of a flock? In this study, we have explored the active Ising spins (s = +-1) in one dimension, where spin updat…
Domain growth kinetics of active model B with thermal fluctuations
Shambhavi Dikshit, Sudipta Pattanayak, Shradha Mishra +1
We perform a comprehensive study on the role of thermal noise on the ordering kinetics of a collection of active Brownian particles modeled using coarse-grained conserved active mo…
Effective single component description of steady state structures of passive particles in an active bath
Jay Prakash Singh, Sudipta Pattanayak, Shradha Mishra +1
We model a binary mixture of passive and active Brownian particles in two dimensions using the effective interaction between passive particles in the active bath. The activity of a…
Domain Growth in the Active Model B: Critical and Off-critical Composition
Sudipta Pattanayak, Shradha Mishra, Sanjay Puri
We study the ordering kinetics of an assembly of {\it active Brownian particles} (ABPs) on a two-dimensional substrate. We use a coarse-grained equation for the composition order p…
Ordering Kinetics in the Active Model B
Sudipta Pattanayak, Shradha Mishra, Sanjay Puri
We undertake a detailed numerical study of the {\it Active Model B} proposed by Wittkowski et al. [Nature Comm. {\bf 5}, 4351 (2014)]. We find that the introduction of activity has…
Polar flock with bond disorder
Jay Prakash Singh, Sudipta Pattanayak, Shradha Mishra
In this study, we introduce a minimal model for a collection of polar self-propelled particles (SPPs) on a two-dimensional substrate where each particle has a different ability to…
Speed inhomogeneity accelerates the information transfer in polar flock
Sudipta Pattanayak, Jay Prakash Singh, Manoranjan Kumar +1
A collection of self-propelled particles (SPPs) shows coherent motion and exhibits a true long range ordered (LRO) state in two dimensions. Various studies show that the presence o…
Enhanced dynamics of active Brownian particles in periodic obstacle arrays and corrugated channels
Sudipta Pattanayak, Rakesh Das, Manoranjan Kumar +1
We study the motion of an active Brownian particle (ABP) using overdamped Langevin dynamics on a two-dimensional substrate with periodic array of obstacles and in a quasi-one-dimen…
Collection of polar self-propelled particles with a modified alignment interaction
Sudipta Pattanayak, Shradha Mishra
We study the disorder-to-order transition in a collection of polar self-propelled particles interacting through a distance dependent alignment interaction. Strength of the interact…
Boundary induced convection in a collection of polar self-propelled particles
Shradha Mishra, Sudipta Pattanayak
We study a collection of polar self-propelled particles confined to a long two-dimensional channel. We write the coupled hydrodynamic equations of motion for density and polarisati…
Density phase separation and order-disorder transition in a collection of polar self-propelled particles
Sudipta Pattanayak, Shradha Mishra
We study the order-disorder transition in a collection of polar self-propelled particles, interacting through a distance dependent short range alignment interaction. A distance dep…