On the Origin of the $log d$ Variation of the Electrostatic Force Minimizing Voltage in Casimir Experiments


Abstract in English

A number of experimental measurements of the Casimir force have observed a logarithmic distance variation of the voltage that minimizes electrostatic force between the plates in a sphere-plane geometry. We show that this variation can be simply understood from a geometric averaging of surface potential patches together with the Proximity Force Approximation.

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