| 多个白噪声驱动下一维周期势中粒子的迁移率 |
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| 引用本文： | 陈俊,曹力,吴大进.多个白噪声驱动下一维周期势中粒子的迁移率[J].华中科技大学学报(自然科学版),1997(12). |
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| 作者姓名： | 陈俊 曹力 吴大进 |
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| 作者单位： | Chen Jun Master; Dept. of Phys.，HUST，' Wuhan 430074，China. |
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| 基金项目： | 国家自然科学基金!19475013 |
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| 摘 要： | 高阻尼条件下推导了在加性和乘性白噪声共同驱动下一维周期势中运动粒子的迁移率公式．当周期势为余弦势时，发现：在加性白噪声的基础上，由于周期势幅涨落导致乘性白噪声的加入，使运动粒子的迁移率增大，并且在两个噪声强度一定的条件下，运动粒子的迁移率随周期势幅的增大而减少，直至为零．
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| 关 键 词： | 周期势 白噪声 迁移率 |
The Mobility of Particles Driven by White Noises in One-Dimensional Periodic Potential |
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| Chen Jun, Cao Li, Wu Dajin.The Mobility of Particles Driven by White Noises in One-Dimensional Periodic Potential[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(12). |
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| Authors: | Chen Jun Cao Li Wu Dajin |
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| Abstract: | In the case of high friction, the formula of the mobility of particles driven by additive andmultiplicative white noises simultaneously in one-dimensional periodic potential is derived. It is foundthat under cosine potential, the mobility of moving particle is larger when the multiplicative whitenoise is imported in addition to the additive one. The mobility of particle is decreased and could bedown to zero with the increase of potential amplitude. |
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| Keywords: | periodic potential white noise mobility |
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