控制激活过程

The Random and Fluctuating World Pub Date : 2001-03-01 DOI:10.1142/S0219477501000081

M. Dykman, B. Golding

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引用次数: 0

摘要

激活过程的速率，如从亚稳态逸出和成核，对外部施加的场呈指数级敏感。我们描述了这如何应用于高频场的调制，并用实验观察来说明它。这一结果可能会导致周期性扩散的选择性控制、晶体生长的新控制机制和新的分离技术。

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CONTROLLING ACTIVATED PROCESSES

The rates of activated processes, such as escape from a metastable state and nucleation, are exponentially sensitive to an externally applied field. We describe how this applies to modulation by high-frequency fields and illustrate it with experimental observations. The results may lead to selective control of diffusion in periodic potentials, novel control mechanisms for crystal growth, and new separation techniques.

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来源期刊

The Random and Fluctuating World

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