Forces induced by quantum fluctuations of the electromagnetic field control adhesion phenomena between rough solids when the bodies are separated by distances of approximately $10\mathrm{nm}$. However, this distance range remains largely unexplored experimentally in contrast with the shorter (van der Waals forces) or the longer (Casimir forces) separations. The reason for this is the pull-in instability of the systems with the elastic suspension that poses a formidable limitation. In this paper we propose a genuine experimental configuration that does not suffer from the short distance instability. The method is based on the adhered cantilever, whose shape is sensitive to the forces acting near the adhered end. The general principle of the method, its possible realization, and feasibility are extensively discussed. The dimensions of the cantilever are determined by the maximum sensitivity to the forces. If the adhesion is defined by strong capillary or chemical interactions, the method loses its sensitivity. Special discussion is presented for the determination of the minimum distance between the rough solids upon contact, and for the compensation of the residual electrostatic contribution. The proposed method can be applied to any kind of solids (metals, semiconductors, or dielectrics) and to any intervening medium (gas or liquid).

中文翻译：

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测量范德华斯-卡西米尔转变附近的色散力

当物体之间的距离大约为1时，由电磁场的量子涨落引起的力控制了粗糙固体之间的粘附现象。 $10\mathrm{纳米}$。但是，与较短的距离（范德华力）或较长的距离（卡西米尔力）相比，该距离范围在实验上仍未开发。其原因是具有弹性悬架的系统的拉入不稳定性造成了巨大的局限性。在本文中，我们提出了一种真正的实验配置，不会遭受短距离不稳定性的困扰。该方法基于粘附的悬臂，其形状对作用在粘附端附近的力敏感。对该方法的一般原理，其可能的实现和可行性进行了广泛的讨论。悬臂的尺寸取决于对力的最大敏感性。如果粘附力是通过强烈的毛细作用或化学作用定义的，则该方法将失去灵敏度。提出了特别的讨论，用于确定接触时粗糙固体之间的最小距离，以及对残余静电贡献的补偿。所提出的方法可以应用于任何种类的固体（金属，半导体或电介质）和任何中间介质（气体或液体）。