Modeling electrostatic patch effects in Casimir force measurements

R. O. Behunin, F. Intravaia, D. A.R. Dalvit, P. A.Maia Neto, S. Reynaud

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Electrostatic patch potentials give rise to forces between neutral conductors at distances in the micrometer range and must be accounted for in the analysis of Casimir force experiments. In this paper we develop a quasilocal model for describing random potentials on metallic surfaces. In contrast to some previously published results, we find that patches may provide a significant contribution to the measured signal and thus may be a more important systematic effect than was previously anticipated. Additionally, patches may render the experimental data at distances below 1 μm compatible with theoretical predictions based on the Drude model.

Original languageEnglish (US)
Article number012504
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume85
Issue number1
DOIs
StatePublished - Jan 3 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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