General no-go condition for stochastic pumping

Details General no-go condition for stochastic pumping General no-go condition for stochastic pumping

2010-02-19

arxiv.org/abs/1002.3811v2

Physics

Condensed Matter

Statistical Mechanics

8 pages; v2: minor changes, 1 reference added

Scientific paper

The control of chemical dynamics requires understanding the effect of time-dependent transition rates between states of chemo-mechanical molecular configurations. Pumping refers to generating a net current, e.g. per period in the time-dependence, through a cycle of consecutive states. The working of artificial machines or synthesized molecular motors depends on it. In this paper we give short and simple proofs of no-go theorems, some of which appeared before but here with essential extensions to non-Markovian dynamics, including the study of the diffusion limit. It allows to exclude certain protocols in the working of chemical motors where only the depth of the energy well is changed in time and not the barrier height between pairs of states. We also show how pre-existing steady state currents are in general modified with a multiplicative factor when this time-dependence is turned on.

Affiliated with

Also associated with

No associations

Rating

General no-go condition for stochastic pumping does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with General no-go condition for stochastic pumping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and General no-go condition for stochastic pumping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-364346