112 citations · 585 across the 33 of their papers we have counts for
33 papers
Nature of barriers determine first passage times in heterogeneous media
Moumita Dasgupta, Sougata Guha, Leon Armbruster +2
Intuition suggests that passage times across a region increases with the number of barriers along the path. Can this fail depending on the nature of the barrier? To probe this fund…
First passage in the presence of stochastic resetting and a potential barrier
Saeed Ahmad, Krishna Rijal, Dibyendu Das
Diffusion and first passage in the presence of stochastic resetting and potential bias have been of recent interest. We study a few models, systematically progressing in their comp…
Capture of a diffusive prey by multiple predators in confined space
Indrani Nayak, Amitabha Nandi, Dibyendu Das
The first passage search of a diffusing target (prey) by multiple searchers (predators) in confinement is an important problem in the stochastic process literature. While the analo…
Role of dimensions in first passage of a diffusing particle under stochastic resetting and attractive bias
Saeed Ahmad, Dibyendu Das
Recent studies in one dimension have revealed that the temporal advantage rendered by stochastic resetting to diffusing particles in attaining first passage, may be annulled by a s…
Coarsening Dynamics in the Vicsek Model of Active Matter
Nisha Katyal, Supravat Dey, Dibyendu Das +1
We study the flocking model introduced by Vicsek in the "coarsening" regime. At standard self-propulsion speeds, we find two distinct growth laws for the coupled density and veloci…
First passage of a particle in a potential under stochastic resetting: a vanishing transition of optimal resetting rate
Saeed Ahmad, Indrani Nayak, Ajay Bansal +2
First passage in a stochastic process may be influenced by the presence of an external confining potential, as well as "stochastic resetting" in which the process is repeatedly res…