摘要
研究了 Brownian(布朗 ) motor在二维耦合的非对称性周期势中同时受热噪声和外部非平衡涨落驱动下的定向输运 ,讨论了耦合对流行为的影响 .发现在二维摇摆棘轮中 ,流和效率的极大值出现在有限温度 ;而在二维关联棘轮中 ,流的极大值比一维的大
The transport of a Brownian motor driven by an external fluctuation in a two dimensional (2D) coupled asymmetrical periodic potential is studied. The optimization of both the current and efficiency in the 2D rocked ratchet can be found at finite temperature. For a correction ratchet, the maximal current is increased by two orders of magnitude over the one dimension, and the coupling between 1D and 2D can affect the current.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第5期637-642,共6页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金项目 (10 0 75 0 0 2
196 0 5 0 0 5 )
教育部跨世纪优秀人才基金资助项目
