24 citations · 48 across the 3 of their papers we have counts for
7 papers
Colloids Exposed to Random Potential Energy Landscapes: from Particle Number Density to Particle-Potential and Particle-Particle Interactions
J. Bewerunge, A. Sengupta, R. F. Capellmann +3
Colloidal particles were exposed to a random potential energy landscape (rPEL) that has been created optically via a speckle pattern. The mean particle density as well as the poten…
Effect of fluid-colloid interactions on the mobility of a thermophoretic microswimmer in non-ideal fluids
Dmitry A. Fedosov, Ankush Sengupta, Gerhard Gompper
Janus colloids propelled by light, e.g., thermophoretic particles, offer promising prospects as artificial microswimmers. However, their swimming behavior and its dependence on flu…
Chemotactic predator-prey dynamics
Ankush Sengupta, Tobias Kruppa, Hartmut Löwen
A discrete chemotactic predator-prey model is proposed in which the prey secrets a diffusing chemical which is sensed by the predator and vice versa. Two dynamical states correspon…
Driven Disordered Polymorphic Solids: Phases and Phase Transitions, Dynamical Coexistence and Peak Effect Anomalies
Ankush Sengupta, Surajit Sengupta, Gautam I. Menon
We study a model for the depinning and driven steady state phases of a solid tuned across a polymorphic phase transition between ground states of triangular and square symmetry. Th…
Dynamics of a microorganism moving by chemotaxis in its own secretion
Ankush Sengupta, Sven van Teeffelen, Hartmut Löwen
The Brownian dynamics of a single microorganism coupled by chemotaxis to a diffusing concentration field which is secreted by the microorganism itself is studied by computer simula…
Driven Disordered Periodic Media with an Underlying Structural Phase Transition
Ankush Sengupta, Surajit Sengupta, Gautam I. Menon
We investigate the driven states of a two-dimensional crystal whose ground state can be tuned through a square-triangular transition. The depinning of such a system from a quenched…