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[摘要]：We report measurements of the short-range forces between two macroscopic gold-coated plates using a torsion pendulum. The force is measured for separations between 0.7 and 7 mu m and is well described by a combination of the Casimir force, including the finite-temperature correction, and an electrostatic force due to patch potentials on the plate surfaces. We use our data to place constraints on the Yukawa-type "new" forces predicted by theories with extra dimensions. We establish a new best bound for force ranges 0.4-4 mu m and, for forces mediated by gauge bosons propagating in (4 + n) dimensions and coupling to the baryon number, extract a (4 + n)-dimensional Planck scale lower limit of M(*) > 70 TeV. |
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