Dynamics of Interacting Colloids

Abstract

Presented here are the results of analytical and numerical simulations for colloidal systems driven by ratcheting potential switching on and o stochastically. We observe the variation of the resultant directed current as a function of the ratcheting frequency. In the case of an interacting colloidal system, molecular dynamics [3] has revealed resonance of directed current with ratcheting frequency. The analytical tools necessary, the theoretical paradigm of non-equilibrium statistical mechanics and stochastic processes(relevant parts) are also discussed in detail.