Comment on 'Surface-impedance approach solves problems with the thermal Casimir force between real metals'

Journal Article · Thu Jul 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.016101· OSTI ID:20645825

Svetovoy, V B ^[1]

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1. Transducers Science and Technology Group, EWI, University of Twente, P.O. 217, 7500 AE Enschede (Netherlands)

In a recent paper Geyer, Klimchitskaya, and Mostepanenko [Phys. Rev. A 67, 062102 (2003)] proposed the final solution of the problem of temperature correction to the Casimir force between real metals. The basic idea was that one cannot use the dielectric permittivity in the frequency region where a real current may arise leading to Joule heating of the metal. Instead, the surface impedance approach is proposed as a solution of all contradictions. The purpose of this comment is to show that (i) the main idea contradicts to the fluctuation dissipation theorem (ii) the proposed method to calculate the force gives the wrong value of the temperature correction since the contribution of low frequency fluctuations is calculated with the impedance which is not applicable at low frequencies.

• OSTI ID: 20645825
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
CASIMIR EFFECT
CORRECTIONS
DIELECTRIC MATERIALS
ELECTRIC CURRENTS
FLUCTUATIONS
IMPEDANCE
JOULE HEATING
METALS
PERMITTIVITY
SURFACES