6 citations · 8 across the 7 of their papers we have counts for
8 papers
Phase ordering kinetics in Light-Heavy-Vacancy model: unusual coarsening dynamics
Chandradip Khamrai, Sakuntala Chatterjee
We study a one dimensional lattice model of coupled driven system where two kinds of hardcore particle species, `light' and `heavy', move on a fluctuating landscape. Light particle…
Jamming transition in an active exclusion process
Kavita Jain, Sakuntala Chatterjee
Multiple studies on active matter have shown that activity can induce or suppress a phase transition, or modify the critical behavior of a passive system. Here we investigate how a…
A Novel Mechanism of Ordering in a Coupled Driven System: Vacancy Induced Phase Separation
Chandradip Khamrai, Sakuntala Chatterjee
We study a coupled driven system where two different species of particles, along with some vacancies or holes, move on a landscape whose shape fluctuates with time. The movement of…
Dynamics of chemo-receptor activity with time-periodic attractant field
Ramesh Pramanik, Ramu K Yadav, Sakuntala Chatterjee
When exposed to a time-periodic chemical signal, an \textit{E.~coli} cell responds by modulating its receptor activity in a similar time-periodic manner. However, there exists a ph…
Bacterial Chemotaxis in a Traveling Wave Attractant Environment
Shobhan Dev Mandal, Sakuntala Chatterjee
We study single cell E.coli chemotaxis in a spatio-temporally varying attractant environment. Modeling the attractant concentration in the form of a traveling sine wave, we measure…
Persistent exclusion process with time-periodic drive
Deepsikha Das, Sakuntala Chatterjee
We study a persistent exclusion process with time-periodic external potential on a 1d periodic lattice through numerical simulations. A set of run-and-tumble particles move on a la…
Run-and-tumble chemotaxis using reinforcement learning
Ramesh Pramanik, Shradha Mishra, Sakuntala Chatterjee
Bacterial cells use run-and-tumble motion to climb up attractant concentration gradient in their environment. By extending the uphill runs and shortening the downhill runs the cell…
Run-and-tumble particle with saturating rates
Kavita Jain, Sakuntala Chatterjee
We consider a run-and-tumble particle whose speed and tumbling rate are space-dependent on an infinite line. Unlike most of the previous work on such models, here we make the physi…