Casimir Geometry as a Probe of Short Range Forces

• URL: http://arxiv.org/abs/2603.22413v1
• Date: Mon, 23 Mar 2026 18:00:16 GMT
• Title: Casimir Geometry as a Probe of Short Range Forces
• Abstract summary: We show that Casimir geometry constitutes an independent observable.<n>We derive the first constraints from sphere-sphere and plate-plate geometries.<n>Our results establish geometry as a new handle for systematic searches for short range forces.
• Score: 0.25489046505746704
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 $λ\lesssim 10^{-8}~\mathrm{m}$. Our results establish geometry as a new handle for systematic searches for short range forces.

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