104 citations · 165 across the 5 of their papers we have counts for
5 papers
Brownian Motion in a Classical Ideal Gas: a Microscopic Approach to Langevin's Equation
Rangan Lahiri, Arvind, Anirban Sain
We present an insightful ``derivation'' of the Langevin equation and the fluctuation dissipation theorem in the specific context of a heavier particle moving through an ideal gas o…
Strong Phase Separation in a Model of Sedimenting Lattices
Rangan Lahiri, Mustansir Barma, Sriram Ramaswamy
We study the steady state resulting from instabilities in crystals driven through a dissipative medium, for instance, a colloidal crystal which is steadily sedimenting through a vi…
Correlations and Freezing in Steadily Settling Suspensions
Rangan Lahiri, Sriram Ramaswamy
We study the liquid-solid transition in a collection of interacting particles moving through a dissipative medium under the action of a constant, spatially uniform external force,…
Are Steadily Moving Crystals Unstable?
Rangan Lahiri, Sriram Ramaswamy
We study the dynamics of small fluctuations about the uniform state of a crystal moving through a dissipative medium, e.g. a sedimenting colloidal crystal or a moving flux lattice,…
Fluctuation Induced Drift and Current Reversal in Symmetric Potentials
Rangan Lahiri
We explore the motion of a classical particle in a symmetric potential with non-Gaussian skewed white noise. We show analytically and numerically that the presence of nonzero odd m…