Negative resistance and anomalous hysteresis in a collective molecular motor
A spatially extended model for a collective molecular motor is presented. The system is driven far from equilibrium by a quenched additive noise. As a result, it exhibits anomalous transport properties, namely, negative resistance and a clockwise hysteresis cycle. The phase diagram and the region of negative resistance are calculated using a Weiss mean field theory. Intuitive explanations of the anomalous transport properties as well as details of its energetics are given.
Buceta
J
Departamento de Fisica Fundamental, Universidad Nacional de Educacion a Distancia, 28040-Madrid, Spain.
Parrondo
JM
Van Den Broeck C
de La Rubia FJ