24 citations · 77 across the 16 of their papers we have counts for
16 papers
Density-field structures in a few systems undergoing velocity ordering
Subir K. Das, Sohini Chatterjee, Wasim Akram +3
We consider two (off-lattice) varieties of out-of-equilibrium systems, viz., granular and active matter systems, that, in addition to displaying velocity ordering, exhibit fascinat…
Anomalous Conformations and Dynamics of Active Block Copolymers
Suman Majumder, Subhajit Paul
Heterogeneous distribution of passive and active domains in the chromosome plays a crucial role for its dynamic organization within the cell nucleus. Motivated by that here we inve…
Dynamical crossovers and correlations in a harmonic chain of active particles
Subhajit Paul, Abhishek Dhar, Debasish Chaudhuri
We explore the dynamics of a tracer in an active particle harmonic chain, investigating the influence of interactions. Our analysis involves calculating mean-squared displacements…
Thermodynamically Stable Knots in Semiflexible Polymers
Wolfhard Janke, Suman Majumder, Martin Marenz +1
Semiflexible polymers are widely used as a paradigm for understanding structural phases in biomolecules including folding of proteins. Here, we compare bead-spring and bead-stick v…
Spontaneous Micro Flocking of Active Inertial Particles without Alignment Interaction
Subhajit Paul, Suman Majumder, Wolfhard Janke
Observing spontaneous velocity ordering or flocking during motility induced phase separation (MIPS) in a system of spherical active Brownian particles without alignment interaction…
Activity Induced Enhanced Diffusion of a Polymer in Poor Solvent
Suman Majumder, Subhajit Paul, Wolfhard Janke
By means of Brownian dynamics simulations we study the steady-state dynamic properties of a flexible active polymer in a poor solvent condition. Our results show that the effective…
Activity Mediated Globule to Coil Transition of a Flexible Polymer in Poor Solvent
Subhajit Paul, Suman Majumder, Wolfhard Janke
Understanding the role of self-propulsion on the conformational properties of active filamentous objects has relevance in biology. In this context, we consider a flexible bead-spri…
Role of temperature and alignment activity on kinetics of coil-globule transition of a flexible polymer
Subhajit Paul, Suman Majumder, Wolfhard Janke
We study the nonequilibrium kinetics during the coil-globule transition of a flexible polymer chain with active beads after a quench from good to poor solvent condition using molec…
Effects of Alignment Activity on the Collapse Kinetics of a Flexible Polymer
Subhajit Paul, Suman Majumder, Subir K Das +1
Dynamics of various biological filaments can be understood within the framework of active polymer models. Here we consider a bead-spring model for a flexible polymer chain in which…
Knots are Generic Stable Phases in Semiflexible Polymers
Suman Majumder, Martin Marenz, Subhajit Paul +1
Semiflexible polymer models are widely used as a paradigm to understand structural phases in biomolecules including folding of proteins. Since stable knots are not so common in rea…
Motion of a Polymer Globule with Vicsek-like Activity: From Super-diffusive to Ballistic Behavior
Subhajit Paul, Suman Majumder, Wolfhard Janke
Via molecular dynamics simulation with Langevin thermostat we study the structure and dynamics of a flexible bead-spring active polymer model after a quench from good to poor solve…
Dependence of Cluster Growth on Coefficient of Restitution in a Cooling Granular Fluid
Subir K. Das, Subhajit Paul
Starting from configurations having homogeneous spatial density, we study kinetics in a two-dimensional system of inelastically colliding hard particles, a popular model for coolin…
How Do Clusters in Phase-Separating Active Matter Systems Grow? A study for Vicsek activity in systems undergoing vapor-solid transition
Subhajit Paul, Arabinda Bera, Subir K. Das
Via molecular dynamics simulations we have studied kinetics of vapor-"solid" phase transition in an active matter model in which self-propulsion is introduced via the well-known Vi…
Initial Correlation Dependence of Aging in Phase Separating Solid Binary Mixtures and Ordering Ferromagnets
Subir K. Das, Koyel Das, Nalina Vadakkayil +2
Following quenches of initial configurations having long range spatial correlations, prepared at the demixing critical point, to points inside the miscibility gap, we study aging p…
Dimension Dependence of Clustering Dynamics in Models of Ballistic Aggregation and Freely Cooling Granular Gas
Subhajit Paul, Subir K. Das
Via event-driven molecular dynamics simulations we study kinetics of clustering in assemblies of inelastic particles in various space dimensions. We consider two models, viz., the…
Ballistic Aggregation in Systems of Inelastic Particles: Cluster growth, structure and aging
Subhajit Paul, Subir K. Das
We study far-from-equilibrium dynamics in models of freely cooling granular gas and ballistically aggregating compact clusters. For both the cases, from event driven molecular dyna…