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Deterministic ratchets: route to diffusive transport.

作者信息

Borromeo M, Costantini G, Marchesoni F

机构信息

Dipartimento di Fisica, and Istituto Nazionale di Fisica Nucleare, Università di Perugia, I-06123 Perugia, Italy.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Apr;65(4 Pt 1):041110. doi: 10.1103/PhysRevE.65.041110. Epub 2002 Apr 10.

DOI:10.1103/PhysRevE.65.041110
PMID:12005809
Abstract

The rectification efficiency of an underdamped ratchet operated in the adiabatic regime increases according to a scaling current-amplitude curve as the damping constant approaches a critical threshold; below threshold the rectified signal becomes extremely irregular and eventually its time average drops to zero. Periodic (locked) and diffusive (fully chaotic) trajectories coexist on fine tuning the amplitude of the input signal. The transition from regular to chaotic transport in noiseless ratchets has been studied numerically.

摘要

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