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Coupled Brownian motors

Author

Listed:
  • Julián I. Peña Rosselló

    (IFIMAR (UNMdP&CONICET), Univ. Nac. de Mar del Plata)

  • Roberto R. Deza

    (IFIMAR (UNMdP&CONICET), Univ. Nac. de Mar del Plata)

  • Horacio S. Wio

    (IFISC (UIB&CSIC), Univ. de les Illes Balears
    IFCA (UC&CSIC), Univ. de Cantabria)

Abstract

A set of coupled Brownian motors—resulting from a noise-induced phase transition generated through an entropic mechanism, and formerly studied in mean-field 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 confirmed in one case.

Suggested Citation

  • Julián I. Peña Rosselló & Roberto R. Deza & Horacio S. Wio, 2018. "Coupled Brownian motors," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 91(6), pages 1-5, June.
    • Handle: RePEc:spr:eurphb:v:91:y:2018:i:6:d:10.1140_epjb_e2018-80624-9
    DOI: 10.1140/epjb/e2018-80624-9
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    Cited by:

    1. Gao, Shilong & Gao, Nunan & Kan, Bixia & Wang, Huiqi, 2021. "Stochastic resonance in coupled star-networks with power-law heterogeneity," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 580(C).

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