期刊
SCIENCE ADVANCES
卷 7, 期 22, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abg2272
关键词
-
资金
- Swiss National Science Foundation [186747]
Research on theoretical calculation of Casimir-van der Waals (vdW) forces has shown inconsistencies and conflicts, lacking a universal framework for accurate determination of these forces. A study proposes a universal theoretical platform for computing Casimir-vdW forces, demonstrating a match between calculated and experimentally measured results.
Research on theoretical calculation of Casimir-van der Waals (vdW) forces is characterized by a great number of inconsistencies and conflicting reports with widely differing results for many known materials, including water, contradicting experimental measurements. Despite its importance for conceptual advances in both fundamental aspects and practical applications, a universal framework for the accurate determination of Casimir-vdW forces is lacking. Here, we propose a universal theoretical platform for computing Casimir-vdW forces, accounting for the electronic dielectric constant, optical bandgap, density, and chemical composition. Using this methodology, we determine the dielectric function for 55 materials, over a wide range of photon energies, covering an extensive list of common metals, organic and inorganic semiconductors, and insulators. Internal consistency of the compiled data is validated using optical sum rules and Kramers-Kronig relations. We demonstrate that the calculated vdW forces based on these data match remarkably well with the experimentally measured vdW forces.
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