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振动板之间的非平衡 Casimir 力。

Non-equilibrium Casimir force between vibrating plates.

机构信息

Department of Physics, University of Texas at Brownsville, Brownsville, Texas, United States of America.

出版信息

PLoS One. 2013;8(1):e53228. doi: 10.1371/journal.pone.0053228. Epub 2013 Jan 10.

DOI:10.1371/journal.pone.0053228
PMID:23326401
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3542369/
Abstract

We study the fluctuation-induced, time-dependent force between two plates confining a correlated fluid which is driven out of equilibrium mechanically by harmonic vibrations of one of the plates. For a purely relaxational dynamics of the fluid we calculate the fluctuation-induced force generated by the vibrating plate on the plate at rest. The time-dependence of this force is characterized by a positive lag time with respect to the driving. We obtain two distinctive contributions to the force, one generated by diffusion of stress in the fluid and another related to resonant dissipation in the cavity. The relation to the dynamic Casimir effect of the electromagnetic field and possible experiments to measure the time-dependent Casimir force are discussed.

摘要

我们研究了两块板之间的波动诱导的、随时间变化的力，这两块板限制了一种相关的流体，其中一块板通过机械的谐振动被驱离平衡。对于流体的纯弛豫动力学，我们计算了由振动板对静止板产生的波动诱导力。该力的时间依赖性的特征是相对于驱动力存在一个正的滞后时间。我们得到了力的两个独特贡献，一个是由流体中的应力扩散产生的，另一个与腔中的共振耗散有关。我们还讨论了与电磁场的动态卡西米尔效应的关系以及可能用于测量时变卡西米尔力的实验。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/bb23da084471/pone.0053228.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/c8adfcaf2752/pone.0053228.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/98cc8d033fc8/pone.0053228.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/3984019291e8/pone.0053228.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/bb23da084471/pone.0053228.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/c8adfcaf2752/pone.0053228.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/98cc8d033fc8/pone.0053228.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/3984019291e8/pone.0053228.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48cd/3542369/bb23da084471/pone.0053228.g004.jpg

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本文引用的文献

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Thermal Casimir drag in fluctuating classical fields.波动经典场中的热卡西米尔阻力。
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jul;84(1 Pt 1):010103. doi: 10.1103/PhysRevE.84.010103. Epub 2011 Jul 29.
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Dynamical approach to the Casimir effect.卡西米尔效应的动力学方法。
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Mar;83(3 Pt 1):031102. doi: 10.1103/PhysRevE.83.031102. Epub 2011 Mar 2.
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Out-of-equilibrium behavior of Casimir-type fluctuation-induced forces for free classical fields.自由经典场的卡西米尔型涨落诱导力的非平衡行为。
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