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arXiv cond-mat/9901034cond-mat.stat-mech
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分子马达玩具模型

Toy model for molecular motors

H. Ambaye, K. W. Kehr

摘要:

提出了一个分子马达的跳跃模型,该模型由一个周期为2的非对称跳跃率态和一个均匀跳跃率态组成。状态的变化导致粒子的稳定的单向电流。电流被明确地计算为状态变化率的函数,还包括外部偏置场。研究了粒子线迁移率与扩散系数之间的爱因斯坦关系。输入到系统的功率,以及由对偏置场执行的工作产生的功率输出。该模型的效率被发现是相当小的。

英文摘要:

A hopping model for molecular motors is presented consisting of a state with asymmetric hopping rates with period 2 and a state with uniform hopping rates. State changes lead to a stationary unidirectional current of a particle. The current is explicitly calculated as a function of the rate of state changes, including also an external bias field. The Einstein relation between the linear mobility of the particle and its diffusion coefficient is investigated. The power input into the system is derived, as well as the power output resulting from the work performed against the bias field. The efficiency of this model is found to be rather small.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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