Deterministic ratchets: Route to diffusive transport

被引:60
作者
Borromeo, M [1 ]
Costantini, G
Marchesoni, F
机构
[1] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy
[2] Univ Perugia, Ist Nazl Fis Nucl, I-06123 Perugia, Italy
[3] Univ Camerino, Ist Nazl Fis Mat, I-62032 Camerino, Italy
来源
PHYSICAL REVIEW E | 2002年 / 65卷 / 04期
关键词
D O I
10.1103/PhysRevE.65.041110
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
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.
引用
收藏
页码:5 / 041110
页数:5
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