Improved tests of extra dimensional physics and thermal quantum field theory from new Casimir force measurements

By Ricardo S. Decca, Ephraim Fischbach, Galina L. Klimchitskaya, Dennis E. Krause, Daniel Lopez, Vladimir M. Mostepanenko. 2003

169 citations recorded by the source corpus.

We report new constraints on extra-dimensional models and other physics beyond the standard model based on measurements of the Casimir force between two dissimilar metals for separations in the range $0.2\char21{}1.2\ensuremath{\mu}\mathrm{m}.$ The Casimir force between a Au-coated sphere and a Cu-coated plate of a microelectromechanical torsional oscillator was measured statically with an absolute error of 0.3 pN. In addition, the Casimir pressure between two parallel plates was determined dynamically with an absolute error of $\ensuremath{\approx}0.6\mathrm{mPa}.$ Within the limits of experimental and theoretical errors, the results are in agreement with a theory that takes into account the finite conductivity and roughness of the two metals. The level of agreement between experiment and theory was then used to set limits on the predictions of extra-dimensional physics and thermal quantum field theory. It is shown that two theoretical approaches to the thermal Casimir force which predict effects linear in temperature are ruled out by these experiments. Finally, constraints on Yukawa corrections to Newton's law of gravity are strengthened by more than an order of magnitude in the range 56\char21{}330 nm.

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/f94abd823d6aa2a269058276bb379da476f98723

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In Atomic and Molecular Physics, and Optics

In Statistical and Nonlinear Physics

Citations in the corpus

The Casimir force between real materials: Experiment and theory (2009, methodology): “The most precise measurements of the Casimir force between metallic surfaces were performed in a series of experiments by Decca et al. (2003a, 2003b, 2004, 2005b, 2007a, 2007b) using a micromechanical torsional oscillator.”