| Description: | [DPS Seminar] Dr. Debasish Chaudhuri (Institute of Physics, Bhubaneswar) -- How inertia impacts non-equilibrium features of active Brownian particles |
| Date: | Tuesday, Mar 12, 2024 |
| Time: | 2:30 p.m. - 4 p.m. |
| Venue: | Meghnad Saha Lecture Theatre |
| Details: | We will consider inertial active particles acted on simultaneously by Brownian and active noise. We present a direct method to derive exact expressions for all moments of dynamical variables in arbitrary dimensions. The analytic results are verified against numerical simulations and used to analyze interesting dynamic crossovers. Using illustrative examples, we will show how an interplay of activity, stiffness of external trapping potential, and inertia leads to dynamic crossovers between equilibrium-like and purely non-equilibrium distributions. In the presence of excluded volume interactions, remarkable new features arise — the steady-state diffusivity and mobility of a tagged particle decrease with mass. These many-body results are rationalized using kinetic theory arguments. |
| Calendar: | Seminar Calendar (entered by rajni) |