用外加电场控制大气与球的相互作用
Controlling the atom-sphere interaction with an external electric field
摘要:
研究了在外加静电场作用下,纳米球附近可极化原子所构成的系统,发现它们之间的吸引色散力可以被静电相互作用所克服.因此,除了在不需要物理接触的情况下利用外部媒介主动调节合力的有利可能性之外,该力也可以变得排斥。我们分析了这种情况下,在不同的物理制度的距离,并探讨不同的原子与金属和电介质球的相互作用,讨论哪些情况下更容易控制。此外,我们的研究结果表明,这些排斥力可以实现在实验室中与可行的场强。
英文摘要:
We investigate the system constituted by a polarizable atom near a nanosphere under the influence of an external electrostatic field, showing that the attractive dispersive force between them can be overcome by the electrostatic interaction. Therefore, in addition to the advantageous possibility of actively tuning the resultant force with an external agent without the requirement of physical contact, this force may also become repulsive. We analyze this situation in different physical regimes of distance and explore the interaction of different atoms with both metallic and dielectric spheres, discussing which cases are easier to control. Furthermore, our results reveal that these repulsive forces can be achieved with feasible field intensities in the laboratory.
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。