Anomalies in electrostatic calibrations for the measurement of the Casimir force in a sphere-plane geometry

被引:95
作者
Kim, W. J. [1 ]
Brown-Hayes, M. [1 ]
Dalvit, D. A. R. [2 ]
Brownell, J. H. [1 ]
Onofrio, R. [1 ,3 ]
机构
[1] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA
[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[3] Univ Padua, Dipartimento Fis Galileo Galilei, I-35131 Padua, Italy
来源
PHYSICAL REVIEW A | 2008年 / 78卷 / 02期
关键词
D O I
10.1103/PhysRevA.78.020101
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have performed precision electrostatic calibrations in the sphere-plane geometry and observed anomalous behavior. Namely, the scaling exponent of the electrostatic signal with distance was found to be smaller than expected on the basis of the pure Coulombian contribution and the residual potential found to be distance dependent. We argue that these findings affect the accuracy of the electrostatic calibrations and invite reanalysis of previous determinations of the Casimir force.
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页数:4
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