11 papers
Density-Induced Reentrant Coarsening in a Two-Temperature System
Partha Sarathi Mondal, Anish Kumar, Nayana Venkatareddy +2
Understanding how nonequilibrium driving modifies phase-separation kinetics remains a fundamental challenge. Here we show that phase separation in a two-temperature system exhibits…
Spatiotemporal Chaos and Defect Proliferation in Polar-Apolar Active Mixture
Partha Sarathi Mondal, Tamas Vicsek, Shradha Mishra
Chaotic transitions in inertial fluids typically proceed through a direct energy cascade from large to small scales. In contrast, active systems, composed of self propelled units,…
Phase separation kinetics of 2-TIPS at low density: Cluster growth by ballistic agglomeration
Nayana Venkatareddy, Partha Sarathi Mondal, Shradha Mishra +1
We study the kinetics of two-temperature induced phase separation (2-TIPS) in dilute binary mixtures of active ("hot") and passive ("cold") particles using molecular dynamics simul…
String Formation and Arrested Ordering Kinetics in Nematics Induced by Polar Particles
Pawan Kumar Mishra, Partha Sarathi Mondal, Pratikshya Jena +1
Our study explores the mixture of polar particles in apolar environment. We employ a coarse-grained approach to model the mixture, where polar particles are in minority. The intera…
Effective single particle theory for active particles using local density fluctuations
Jayam Joshi, Pawan Kumar Mishra, Shradha Mishra
We characterize the dynamic non-equilibrium steady state behavior of active particles using density fluctuations in the system. We analyze the effective local density around a part…
Growth Laws and Universality in 2-TIPS: Microscopic and Coarse grained approach
Nayana Venkatareddy, Partha Sarathi Mondal, Jaydeep Mandal +2
Two temperature induced phase separation(2-TIPS) is a phenomenon observed in mixtures of active and passive particles modeled by scalar activity where the temperature of the partic…