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Browsing Subir Kumar Das by Author "Das, Subir Kumar"

Now showing items 1-7 of 7

Activity mediated phase separation: Can we understand phase behavior of the nonequilibrium problem from an equilibrium approach?

Trefz, Benjamin; Das, Subir Kumar; Egorov, Sergei A.; Virnau, Peter; Binder, Kurt (American Institute Physics, 2016)

We present results for structure and dynamics of mixtures of active and passive particles, from molecular dynamics (MD) simulations and integral equation theory (IET) calculations, for a physically motivated model. The ...
Aging in ferromagnetic ordering: full decay and finite-size scaling of autocorrelation

Midya, Jiarul; Majumder, Suman; Das, Subir Kumar (IoP Publishing Ltd, 2014)

Nonequilibrium dynamics in Ising and Ginzburg-Landau models were studied for a nonconserved order parameter that mimics ordering in ferromagnets. The focus was on the understanding of the decay of the two time (t, tw; t > ...
Dynamics of clustering in freely cooling granular fluid

Paul, Subhajit; Das, Subir Kumar (Epl Association, European Physical Society, 2014)

Via the event-driven molecular-dynamics simulations, we have studied the structure and dynamics in a model granular fluid of hard discs in space dimension d = 2. Inelastic collisions among these discs lead to clustering, ...
Finite-size scaling study of shear viscosity anomaly at liquid-liquid criticality

Roy, Sutapa; Das, Subir Kumar (American Institute of Physics, 2014)

We study the equilibrium dynamics of a symmetrical binary Lennard-Jones fluid mixture near its consolute criticality. Molecular dynamics simulation results for the shear viscosity,., from a micro-canonical ensemble are ...
Fractality in persistence decay and domain growth during ferromagnetic ordering: Dependence upon initial correlation

Chakraborty, Saikat; Das, Subir Kumar (American Physical Society, 2016)

The dynamics of ordering in the Ising model, following quench to zero temperature, has been studied via Glauber spin-flip Monte Carlo simulations in space dimensions d = 2 and 3. One of the primary objectives has been to ...
Phase Behavior of Active Swimmers in Depletants: Molecular Dynamics and Integral Equation Theory

Das, Subir Kumar; Egorov, Sergei A.; Trefz, Benjamin; Virnau, Peter; Binder, Kurt (American Physical Society, 2014)

We study the structure and phase behavior of a binary mixture where one of the components is self-propelling in nature. The interparticle interactions in the system are taken from the Asakura-Oosawa model for colloid-polymer ...
Phase separation of fluids in porous media: A molecular dynamics study

Ahmad, Shaista; Puri, Sanjay; Das, Subir Kumar (American Physical Society, 2014)

We present comprehensive molecular dynamics results for phase-separation kinetics of fluids in a porous medium. This system is modeled by a symmetric Lennard-Jones fluid mixture with a quenched random field. The presence ...

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