Attractive electromagnetic Casimir stress on a spherical dielectric shell

Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Based on calculations involving an idealized boundary condition, it has long been assumed that the stress on a spherical conducting shell is repulsive. We use the more realistic case of a Drude dielectric to show that the stress is attractive, matching the generic behavior of Casimir forces in electromagnetism. We trace the discrepancy between these two cases to interactions between the electromagnetic quantum fluctuations and the dielectric material.
Description
CITATION: Graham, N., Quandt, M. & Weigel, H. 2013. Attractive electromagnetic Casimir stress on a spherical dielectric shell. Physics Letters B, 726(4–5):846-849, doi:10.1016/j.physletb.2013.09.025.
The original publication is available at https://www.journals.elsevier.com/physics-letters-b/
Keywords
Casimir effect
Citation
Graham, N., Quandt, M. & Weigel, H. 2013. Attractive electromagnetic Casimir stress on a spherical dielectric shell. Physics Letters B, 726(4–5):846-849, doi:10.1016/j.physletb.2013.09.025.