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arXiv 1006.4534cond-mat.stat-mech
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旋转力场对受驱布朗粒子所作功测定的影响

Influence of rotational force fields on the determination of the work done on a driven Brownian particle

Giuseppe Pesce, Giovanni Volpe, Alberto Imparato, Giulia Rusciano, Antonio Sasso

摘要:

对于布朗系统,热力学量的演化是一个随机过程。特别是,即使操作协议保持不变,对保持在光阱中的驱动胶体颗粒进行的工作也会因实验操作的每次实现而改变。然而,工作分配受既定法律的制约。在这里,我们展示了如何测量的工作分布的影响,即旋转,非保守,辐射力的存在。对不同材料的粒子的实验表明,旋转辐射力,因此,他们对工作分布的影响,随着粒子折射率的增加。

英文摘要:

For a Brownian system the evolution of thermodynamic quantities is a stochastic process. In particular, the work performed on a driven colloidal particle held in an optical trap changes for each realization of the experimental manipulation, even though the manipulation protocol remains unchanged. Nevertheless, the work distribution is governed by established laws. Here, we show how the measurement of the work distribution is influenced by the presence of rotational, i.e. nonconservative, radiation forces. Experiments on particles of different materials show that the rotational radiation forces, and therefore their effect on the work distributions, increase with the particle refractive index.

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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