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Quantum Control Electronics System Integration

Prediction of a measurable sign change in the Casimir force using a magnetic fluid

arXiv
Authors: Long Ma, Larissa Inácio, Dai-Nam Le, Lilia M. Woods, Mathias Boström

Year

2026

Paper ID

4310

Status

Preprint

Abstract Read

~2 min

Abstract Words

101

Citations

N/A

Abstract

We demonstrate quantum levitation controlled by Casimir forces acting between a polystyrene surface and a Teflon-coated metallic substrate immersed in a mixture of Toluene and magnetite particles. This system experiences repulsion-attraction transitions in the Casimir interaction for distances where the effect is measurable. This Casimir trapping can be controlled by clever choices of metallic and ferrofluid materials, which are directly linked to the emergence of the trapping effect. Thermal and quantum contributions are investigated in detail, showing how the optical and magnetic properties of the ferrofluid and other materials affect the magnitude of the trapping and its distance range of observability.

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  • We demonstrate quantum levitation controlled by Casimir forces acting between a polystyrene surface and a Teflon-coated metallic substrate immersed in a mixture of Toluene and...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.00483 [2] arXiv https://arxiv.org/abs/2601.00483 [3] Publisher https://arxiv.org/abs/2601.00483

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