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Comment on "Calculation of the Casimir force between imperfectly conducting plates"
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics.ORCID iD: 0000-0002-6281-868X
2000 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 61, no 4Article in journal, Editorial material (Other academic) Published
Abstract [en]

In a recent paper [Phys. Rev. A 59, R3149 (1999)] Lamoreaux reported calculations of the Casimir force. The experimentally found permittivity was used in the calculations. Large deviations were found between numerically evaluated forces and forces derived from a series expanded plasma model. We would like to comment on a few results presented in this work. First, we claim that important features of the imaginary component of the permittivity of copper, presented in Fig. 1(a) are due to the interpolation procedure and are not caused by physical phenomena. These features influence the calculated permittivity for imaginary frequencies, which is the quantity used to calculate the Casimir attraction. Second, we discuss the extrapolation procedure used for low frequencies. The results depend substantially on how this extrapolation is performed.

Place, publisher, year, edition, pages
2000. Vol. 61, no 4
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-49786OAI: oai:DiVA.org:liu-49786DiVA: diva2:270682
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Boström, MathiasSernelius, Bo

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