Deterministic ratchets: route to diffusive transport.
Deterministic ratchets: route to diffusive transport.
复制标题
DOI：
10.1103/physreve.65.041110
复制
发表时间：
2002-03
期刊：
影响因子：
--
通讯作者：
M. Borromeo;Giulio Costantini;F. Marchesoni
中科院分区：
文献类型：
--
作者：
M. Borromeo;Giulio Costantini;F. Marchesoni
在绝热制度下操作的欠阻尼棘轮的整流效率增加，根据缩放电流幅度曲线的阻尼常数接近临界阈值;低于阈值的整流信号变得非常不规则，最终其时间平均值下降到零。周期性（锁定）和扩散（完全混沌）轨迹共存微调输入信号的幅度。数值研究了无噪声棘轮中从规则输运到混沌输运的转变。
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.