Effect of correlated noises on directed motion.
The Langevin equation for a Brownian particle, in contact with a heat bath which offers state dependent friction, is considered to study the directed motion in presence of two external correlated noises. The effects of correlation on transport of the Brownian particle in a symmetric periodic potential is studied and it has been found that the steady state current increases with increase in the degree of correlation. This property suggests that by controlling the degree of correlation one can enhance the current in a properly designed experiment.
Chaudhury
Pinaki
P
Department of Chemistry, University of Calcutta, Kolkata 700009, India.
Mukherjee
Bipul
B
Chattopadhyay
Sudip
S
Chaudhuri
Jyotipratim Ray
JR