32 citations · 173 across the 13 of their papers we have counts for
13 papers
Density-dependent transport coefficients in two-dimensional cellular aggregates
Subhadip Chakraborti, Vasily Zaburdaev
The large-scale collective behavior of biological systems can be characterized by macroscopic transport, which arises from the non-equilibrium microscopic interactions among indivi…
Fluctuating Hydrodynamics Describes Transport in Cellular Aggregates
Subhadip Chakraborti, Vasily Zaburdaev
Biological functionality of cellular aggregates is largely influenced by the activity and displacements of individual constituent cells. From a theoretical perspective this activit…
Boltzmann's entropy during free expansion of an interacting ideal gas
Subhadip Chakraborti, Abhishek Dhar, Anupam Kundu
In this work we study the evolution of Boltzmann's entropy in the context of free expansion of a one dimensional interacting gas inside a box. Boltzmann's entropy is defined for si…
Blast waves in the zero temperature hard sphere gas: double scaling structure
Sahil Kumar Singh, Subhadip Chakraborti, Abhishek Dhar +1
We study the blast generated by sudden localized release of energy in a cold gas. Specifically, we consider one-dimensional hard-rod gas and two-dimensional hard disc gas. For this…
A splash in a one-dimensional cold gas
Subhadip Chakraborti, Abhishek Dhar, P. L. Krapivsky
We consider a set of hard point particles distributed uniformly with a specified density on the positive half-line and all initially at rest. The particle masses alternate between…
Entropy growth during free expansion of an ideal gas
Subhadip Chakraborti, Abhishek Dhar, Sheldon Goldstein +2
To illustrate Boltzmann's construction of an entropy function that is defined for a microstate of a macroscopic system, we present here the simple example of the free expansion of…
Blast in a One-Dimensional Cold Gas: From Newtonian Dynamics to Hydrodynamics
Subhadip Chakraborti, Santhosh Ganapa, P. L. Krapivsky +1
A gas composed of a large number of atoms evolving according to Newtonian dynamics is often described by continuum hydrodynamics. Proving this rigorously is an outstanding open pro…
The Taylor-von Neumann-Sedov blast-wave solution: comparisons with microscopic simulations of a one-dimensional gas
Santhosh Ganapa, Subhadip Chakraborti, P. L. Krapivsky +1
We study the response of an infinite system of point particles on the line initially at rest on the instantaneous release of energy in a localized region. We make a detailed compar…
Transport and fluctuations in mass aggregation processes: mobility driven clustering
Subhadip Chakraborti, Tanmoy Chakraborty, Arghya Das +2
We calculate the bulk-diffusion coefficient and the conductivity in a broad class of conserved-mass aggregation processes on a ring of discrete sites. These processes involve chipp…
Hard core run and tumble particles on a one dimensional lattice
Rahul Dandekar, Subhadip Chakraborti, R. Rajesh
We study the large scale behavior of a collection of hard core run and tumble particles on a one dimensional lattice with periodic boundary conditions. Each particle has persistent…
Hydrodynamics, superfluidity and giant number fluctuations in a model of self-propelled particles
Tanmoy Chakraborty, Subhadip Chakraborti, Arghya Das +1
We derive hydrodynamics of a prototypical one dimensional model, having variable-range hopping, which mimics passive diffusion and ballistic motion of active, or self-propelled, pa…
Additivity and density fluctuations in Vicsek-like models of self-propelled particles
Subhadip Chakraborti, Punyabrata Pradhan
We study coarse-grained density fluctuations in the disordered phase of the paradigmatic Vicsek-like models of self-propelled particles with alignment interactions and random self-…
Additivity, density fluctuations, and nonequilibrium thermodynamics for active Brownian particles
Subhadip Chakraborti, Shradha Mishra, Punyabrata Pradhan
Using an additivity property, we study particle-number fluctuations in a system of interacting self-propelled particles, called active Brownian particles (ABPs), which consists of…