Casimir force between liquid metals
1 Instituto de Fisica, Universidad Nacional Autónoma de México - Apartado Postal 20-364, Mexico
2 Physics Department, Universidad Autonoma Metropolitana-Iztapalapa - 09340 Mexico City, Mexico
Received: 7 June 2014
Accepted: 21 July 2014
We present a theoretical calculation of the Casimir force between liquid metals at room temperature using as case studies mercury (Hg) and eutectic indium gallium (EInGa). The surface tension of the liquids creates surfaces of zero roughness that are truly equipotential, an ideal characteristic for Casimir force experiments. As we show the dielectric properties of Au, EInGa and Hg are very similar and the difference on the Casimir force between Au and EInGa and Au and Hg is less than 4%. Based on these results, a modification of the IUPUI experiment for detecting deviations of Newtonian gravity is proposed.
PACS: 03.70.+k – Theory of quantized fields / 12.20.-m – Quantum electrodynamics / 78.20.Ci – Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
© EPLA, 2014