3 papers
cond-mat.stat-mech2002
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…
cond-mat.soft1998
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,…
cond-mat1996
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…