Ratchet effect of a dimer with broken friction symmetry in a symmetric potential

von Gehlen S, Evstigneev M, Reimann P (2009)
Physical Review E 79(3): 031114.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
The one-dimensional overdamped Brownian motion of a dimer consisting of two harmonically interacting components is considered. Both components are coupled to the same heat bath and feel the same spatially periodic symmetric potential, whose amplitude is modulated periodically in time. The friction coefficients may differ between dimer components, thus breaking the dynamical symmetry of the system. In the absence of any external bias, a ratchet effect (directed transport) arises generically. Two accurate approximations for the dimer's velocity and diffusion coefficient are obtained for weak and strong couplings. The velocity of the system can be maximized for each direction by adding an optimal amount of noise and by tuning the driving frequency to an optimal value. Furthermore, there exist two optimal coupling strengths at which the velocity is the largest.
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Zeitschriftentitel
Physical Review E
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79
Zeitschriftennummer
3
Artikelnummer
031114
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von Gehlen S, Evstigneev M, Reimann P. Ratchet effect of a dimer with broken friction symmetry in a symmetric potential. Physical Review E. 2009;79(3): 031114.
von Gehlen, S., Evstigneev, M., & Reimann, P. (2009). Ratchet effect of a dimer with broken friction symmetry in a symmetric potential. Physical Review E, 79(3), 031114. doi:10.1103/PhysRevE.79.031114
von Gehlen, S., Evstigneev, M., and Reimann, P. (2009). Ratchet effect of a dimer with broken friction symmetry in a symmetric potential. Physical Review E 79:031114.
von Gehlen, S., Evstigneev, M., & Reimann, P., 2009. Ratchet effect of a dimer with broken friction symmetry in a symmetric potential. Physical Review E, 79(3): 031114.
S. von Gehlen, M. Evstigneev, and P. Reimann, “Ratchet effect of a dimer with broken friction symmetry in a symmetric potential”, Physical Review E, vol. 79, 2009, : 031114.
von Gehlen, S., Evstigneev, M., Reimann, P.: Ratchet effect of a dimer with broken friction symmetry in a symmetric potential. Physical Review E. 79, : 031114 (2009).
von Gehlen, Sebastian, Evstigneev, Mykhaylo, and Reimann, Peter. “Ratchet effect of a dimer with broken friction symmetry in a symmetric potential”. Physical Review E 79.3 (2009): 031114.

4 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Ratchet rotation of a 3D dimer on a vibrating plate.
Wang J, Liu C, Jia YB, Ma D., Eur Phys J E Soft Matter 37(1), 2014
PMID: 24458553
Fluctuation-induced transport of two coupled particles: effect of the interparticle interaction.
Makhnovskii YA, Rozenbaum VM, Sheu SY, Yang DY, Trakhtenberg LI, Lin SH., J Chem Phys 140(21), 2014
PMID: 24907991
Ratcheting of neutral elastic dimers on a charged filament.
Pototsky A, Marchesoni F, Savel'ev SE., Phys Rev E Stat Nonlin Soft Matter Phys 81(3 pt 1), 2010
PMID: 20365704
Nonequilibrium phases for driven particle systems with effective orientational degrees of freedom.
Reichhardt C, Olson Reichhardt CJ., Phys Rev E Stat Nonlin Soft Matter Phys 79(6 pt 1), 2009
PMID: 19658505

26 References

Daten bereitgestellt von Europe PubMed Central.

Generalization of a nonlinear friction relation for a dimer sliding on a periodic substrate
Tiwari, The European Physical Journal B 62(4), 2008

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