34 citations · 281 across the 28 of their papers we have counts for
28 papers
Effect of relative timescale on a system of particles sliding on a fluctuating energy landscape: Exact derivation of product measure condition
Chandradip Khamrai, Sakuntala Chatterjee
We consider a system of hardcore particles advected by a fluctuating potential energy landscape, whose dynamics is in turn affected by the particles. Earlier studies have shown tha…
Optimum transport in systems with time-dependent drive and short-ranged interactions
Deepsikha Das, Punyabrata Pradhan, Sakuntala Chatterjee
We study one-dimensional hardcore lattice gases, with nearest-neighbor interactions, in the presence of an external potential barrier, that moves on the periodic lattice with a con…
Short time extremal response to step stimulus for a single cell {\sl E. coli}
Sakuntala Chatterjee
After application of a step stimulus, in the form of a sudden change in attractant environment, the receptor activity and tumbling bias of an {\sl E. coli} cell change sharply to r…
Effect of switching time scale of receptor activity on chemotactic performance of Escherichia coli
Shobhan Dev Mandal, Sakuntala Chatterjee
In the chemotactic motion of Escherichia coli, the switching of transmembrane chemoreceptors between active and inactive states is one of the most important steps of the signaling…
Effect of receptor cooperativity on methylation dynamics in bacterial chemotaxis with weak and strong gradient
Shobhan Dev Mandal, Sakuntala Chatterjee
We study methylation dynamics of the chemoreceptors as an {\sl E.coli} cell moves around in a spatially varying chemo-attractant environment. We consider attractant concentration w…
Effect of receptor clustering on chemotactic performance of Escherichia coli: sensing versus adaptation
Shobhan Dev Mandal, Sakuntala Chatterjee
We show how the competition between sensing and adaptation can result in a performance peak in E.coli chemotaxis using extensive numerical simulations in a detailed theoretical mod…