Directed flow in nonadiabatic stochastic pumps.
We analyze the operation of a molecular machine driven by the nonadiabatic variation of external parameters. We derive a formula for the integrated flow from one configuration to another, obtain a "no-pumping theorem" for cyclic processes with thermally activated transitions, and show that in the adiabatic limit the pumped current is given by a geometric expression.
Department of Chemistry, University of Maryland, College Park, Maryland 20742, USA.
Saar
S
Rahav
Jordan
J
Horowitz
Christopher
C
Jarzynski
D026901:Membrane Transport Proteins / Q000737:chemistry*; D008956:Models, Chemical; D020409:Molecular Motor Proteins / Q000737:chemistry; D013269:Stochastic Processes; D013816:Thermodynamics
D026901:Membrane Transport Proteins; D020409:Molecular Motor Proteins