Improved tests of extra dimensional physics and thermal quantum field theory from new Casimir force measurements
Improved tests of extra dimensional physics and thermal quantum field theory from new Casimir force measurements
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通过新的卡西米尔力测量改进了超维物理和热量子场论的测试
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
V. Mostepanenko
中科院分区：
文献类型：
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作者：
R. Decca;E. Fischbach;G. L. Klimchitskaya;D. Krause;D. Krause;Daniel Lopez;V. Mostepanenko
本文通过测量两种不同金属在$0.2\char21{}1.2\ensuremath{\mu}\mathrm{m}.$范围内分离的卡西米尔力，报道了标准模型之外的额外维度模型和其他物理约束。在微机电扭转振荡器中，镀金球体和镀铜板之间的卡西米尔力的静态测量，绝对误差为0.3 pN。此外，在实验和理论误差范围内，动态确定了两个平行板之间的卡西米尔压力，其绝对误差为$\ensuremath{\approx}0.6\mathrm{mPa}.$，结果与考虑两种金属的有限电导率和粗糙度的理论一致。实验和理论之间的一致性被用来为超维物理和热量子场论的预测设定限制。这些实验表明，热卡西米尔力的两种理论预测温度线性效应的方法被排除在外。最后，汤川修正牛顿万有引力定律的约束在56 \char 213{}30 nm范围内被加强了一个数量级以上。
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.