Alladi Ramakrishnan Hall

Hydrodynamics of run and tumble particles

Rahul Dandekar

IMSc

The hydrodynamics of lattice gases has been an increasingly important field in recent years, but the scope of nontrivial results is not large. A system which falls outside this scope is run and tumble particles (RTPs) on a lattice. RTPs are particles with a vector attached to them which specifies their movement direction and speed, and the vector itself changes direction at a given rate, known as the tumble rate. I will derive the nonequilibrium steady state of the model and show that a different procedure is needed to derive the hydrodynamic coefficients. I will talk about the implications of our results for general lattice gas hydrodynamics.