12 citations · 39 across the 10 of their papers we have counts for
4 papers · 1 filter
Capture of a diffusing lamb by a diffusing lion when both return home
R. K. Singh, Sadhana Singh
A diffusing lion pursues a diffusing lamb when both of them are allowed to get back to their homes intermittently. Identifying the system with a pair of vicious random walkers, we…
Backbone diffusion and first-passage dynamics in a comb structure with confining branches under stochastic resetting
R. K. Singh, T. Sandev, A. Iomin +1
We study the diffusive motion of a test particle in a two-dimensional comb structure consisting of a main backbone channel with continuously distributed side branches, in the prese…
Transport and tumbling of polymers in viscoelastic shear flow
Sadhana Singh, R. K. Singh, Sanjay Kumar
Polymers in shear flow are ubiquitous and we study their motion in a viscoelastic fluid under shear. Employing dumbbells as representative, we find that the center of mass motion f…
Kramers problem for a dimer: effect of noise correlations
R. K. Singh
Kramers problem for a dimer in a bistable piecewise linear potential is studied in the presence of correlated noise processes. The distribution of first passage times from one mini…