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arXiv · 2603.22413

Casimir Geometry as a Probe of Short Range Forces

Xiaolin Ma·Volodymyr Takhistov·Hideo Iizuka
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Abstract

Casimir force searches provide among the most sensitive laboratory probes of new short range interactions. Existing constraints rely almost exclusively on a single geometry. We show that Casimir geometry constitutes an independent observable, as Yukawa-type interactions and Casimir background exhibit different geometric scaling for bulk forces and surface quantum effects. We derive the first constraints from sphere-sphere and plate-plate geometries, thereby completing the canonical set of Casimir geometries, obtaining the most stringent Casimir-based bounds for $\lambda \lesssim 10^{-8}~\mathrm{m}$. Our results establish geometry as a new handle for systematic searches for short range forces.

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Xiaolin Ma, Volodymyr Takhistov, Hideo Iizuka. 2026-03-23. Casimir Geometry as a Probe of Short Range Forces. https://arxiv.org/abs/2603.22413

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