44 citations · 191 across the 18 of their papers we have counts for
15 papers · 1 filter
Stability and breakdown of chiral motion in non-reciprocal flocking
Aditya Kumar Dutta, Swarnajit Chatterjee, Matthieu Mangeat +1
We study a two-species Vicsek model with intra-species alignment and asymmetric inter-species couplings, where one species aligns with the other while the latter anti-aligns. Motiv…
Stability of flocking in the reciprocal two-species Vicsek model: Effects of relative population, motility, and noise
Aditya Kumar Dutta, Matthieu Mangeat, Heiko Rieger +2
Natural flocks need to cope with various forms of heterogeneities, for instance, their composition, motility, interaction, or environmental factors. Here, we study the effects of s…
Emergent complex phases in a discrete flocking model with reciprocal and non-reciprocal interactions
Matthieu Mangeat, Swarnajit Chatterjee, Jae Dong Noh +1
There is growing interest in multi-species active matter systems with reciprocal and non-reciprocal interactions. While such interactions have been explored in continuous symmetry…
Ordering kinetics in the active Ising model
Sayam Bandyopadhyay, Swarnajit Chatterjee, Aditya Kumar Dutta +3
We undertake a numerical study of the ordering kinetics in the two-dimensional () active Ising model (AIM), a discrete flocking model with a conserved density field coupled to…
Consequence of anisotropy on flocking: the discretized Vicsek model
Mintu Karmakar, Swarnajit Chatterjee, Raja Paul +1
We numerically study a discretized Vicsek model (DVM) with particles orienting in possible orientations in two dimensions. The study probes the significance of anisotropic orie…
Jamming and flocking in the restricted active Potts model
Mintu Karmakar, Swarnajit Chatterjee, Matthieu Mangeat +2
We study the active Potts model with either site occupancy restriction or on-site repulsion to explore jamming and kinetic arrest in a flocking model. The incorporation of such vol…
Flocking of two unfriendly species: The two-species Vicsek model
Swarnajit Chatterjee, Matthieu Mangeat, Chul-Ung Woo +2
We consider the two-species Vicsek model (TSVM) consisting of two kinds of self-propelled particles, A and B, that tend to align with particles from the same species and to antiali…
Polar flocks with discretized directions: the active clock model approaching the Vicsek model
Swarnajit Chatterjee, Matthieu Mangeat, Heiko Rieger
We consider the off-lattice two-dimensional -state active clock model (ACM) as a natural discretization of the Vicsek model (VM) describing flocking. The ACM consists of particl…
Active XY model on a substrate: Density fluctuations and phase ordering
Astik Haldar, Apurba Sarkar, Swarnajit Chatterjee +1
We explore the generic long wavelength properties of an active XY model on a substrate, consisting of collection of nearly phase-ordered active XY spins in contact with a diffusing…
Mobility-induced order in active XY spins on a substrate
Astik Haldar, Apurba Sarkar, Swarnajit Chatterjee +1
We elucidate that the nearly phase-ordered active XY spins in contact with a conserved, diffusing species on a substrate can be stable. For wide-ranging model parameters, it has st…
Flocking with a -fold discrete symmetry: band-to-lane transition in the active Potts model
Matthieu Mangeat, Swarnajit Chatterjee, Raja Paul +1
We study the -state active Potts model (APM) on a two-dimensional lattice in which self-propelled particles have internal states corresponding to the directions of motio…
Ordering kinetics in q-state random-bond clock model: Role of Vortices and Interfaces
Swarnajit Chatterjee, Sabyasachi Sutradhar, Sanjay Puri +1
In this article, we present a Monte Carlo study of phase transition and coarsening dynamics in the non-conserved two-dimensional random-bond -state clock model (RBCM) deriving f…
Flocking and reorientation transition in the 4-state active Potts model
Swarnajit Chatterjee, Matthieu Mangeat, Raja Paul +1
We study the active 4-state Potts model (APM) on the square lattice in which active particles have four internal states corresponding to the four directions of motion. A local alig…
Ordering kinetics in q-state clock model: scaling properties and growth laws
Swarnajit Chatterjee, Sanjay Puri, Raja Paul
We present a comprehensive Monte Carlo study of the ordering kinetics in the ferromagnetic -state clock model with nonconserved Glauber dynamics. In agreement with previou…
Ordering Kinetics in the Random Bond XY Model
Manoj Kumar, Swarnajit Chatterjee, Raja Paul +1
We present a comprehensive Monte Carlo study of domain growth in the random-bond XY model with non-conserved kinetics. The presence of quenched disorder slows down domain growth in…