The Langevin equation is a special case of Newton's second law, adapted for the case of describing a small object bombarded stochastically by even smaller ones. It can be writtenwhere is a drag coefficient and is a force that varies randomly from instant to instant, representing the net effect of collisions with the surrounding particles. This is used to model Brownian motion.
The Langevin equation is a special case of Newton's second law, adapted for the case of describing a small object bombarded s,tochastically by even smaller ones. It can be writtenwhere is ?a drag coefficient and is a force that varies randomly from instant to instant, representing the net effect of collisions with the surroun,ding particles. This is used to m?odel Bro:wnian motion.