纳米技术中涉及卡西米尔斥力的机遇和挑战

IF 11.9 1区 物理与天体物理 Q1 PHYSICS, APPLIED Applied physics reviews Pub Date : 2024-12-03 DOI:10.1063/5.0218274
C. Shelden, B. Spreng, J. N. Munday
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引用次数: 0

摘要

卡西米尔力是由量子电动力学波动产生的,表现为金属表面之间的吸引力,金属表面之间的距离仅为数百纳米。随着现代器件架构缩小到纳米和微尺度,量子现象对其行为的影响越来越大。由于典型的卡西米尔相互作用,纳米和微机电系统经常遇到元件粘附或坍塌等问题。因此,在操纵卡西米尔部队方面付出了巨大的努力,旨在将其从吸引转变为排斥。这种能力有望减轻纳米器件中的组件崩溃,并促进量子悬浮和超低摩擦器件的实现。对于工程上的排斥性卡西米尔力,提出了四种主要策略:采用液体介质、磁性材料、热力学非平衡条件和专门的几何形状。在这篇综述中,我们研究了这些工程排斥卡西米尔力的方法,分析了它们的实验可行性,并讨论了潜在的实现。
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Opportunities and challenges involving repulsive Casimir forces in nanotechnology
The Casimir force, which arises from quantum electrodynamic fluctuations, manifests as an attraction between metallic surfaces spaced mere hundreds of nanometers apart. As contemporary device architectures scale down to the nano- and microscales, quantum phenomena exert increasing influence on their behaviors. Nano- and microelectromechanical systems frequently encounter issues such as components adhering or collapsing due to the typically attractive Casimir interactions. Consequently, significant efforts have been devoted to manipulating Casimir forces, aiming to transition them from attractive to repulsive. This ability holds promise for mitigating component collapse in nanodevices and facilitating the realization of quantum levitation and ultralow friction devices. Four primary strategies have been proposed for engineering repulsive Casimir forces: employing liquid media, magnetic materials, thermodynamic nonequilibrium conditions, and specialized geometries. In this review, we examine these approaches for engineering repulsive Casimir forces, analyzing their experimental feasibility, and discussing potential implementations.
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来源期刊
Applied physics reviews
Applied physics reviews PHYSICS, APPLIED-
CiteScore
22.50
自引率
2.00%
发文量
113
审稿时长
2 months
期刊介绍: Applied Physics Reviews (APR) is a journal featuring articles on critical topics in experimental or theoretical research in applied physics and applications of physics to other scientific and engineering branches. The publication includes two main types of articles: Original Research: These articles report on high-quality, novel research studies that are of significant interest to the applied physics community. Reviews: Review articles in APR can either be authoritative and comprehensive assessments of established areas of applied physics or short, timely reviews of recent advances in established fields or emerging areas of applied physics.
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