Coupled Brownian motors

JULIÁN IGNACIO PEÑA ROSSELLÓ; HORACIO S. WIO; ROBERTO R. DEZA

EUROPEAN PHYSICAL JOURNAL B - CONDENSED MATTER

SPRINGER

Lugar: Berlin; Año: 2018

1434-6028

set of coupled Brownian motors- resulting from a noise-induced phase transition generatedthrough an entropic mechanism, and formerly studied in mean-eld approximation- is numerically integrated by Heun´s method. The results add much insight to the mean-field ones, allowing interpretation of the underlying mechanisms. It turns out that the low-noise boundary of the ordered phase obtained in mean-field approximation lies near a region where the order parameter is negative. Hints of bistability and negative mobility around F = 0 are seen in two cases, and anomalous hysteresis is conrmed in one case.