QED vacuum between an unusual pair of plates
M. V. Cougo-Pinto, C. Farina, F. C. Santos. A. C. Santos
Abstract
We consider the photon field between an unusual configuration of infinite parallel plates: a perfectly conducting plate (ε∞) and an infinitely permeable one μ∞). After quantizing the vector potential in the Coulomb gauge, we obtain explicit expressions for the vacuum expectation values of field operators of the form < Ei Ej>0 and < Bi Bj>0. These field correlators allow us to reobtain the Casimir effect for this set up and to discuss the light velocity shift caused by the presence of plates (Scharnhorst effect Scharnhorst,Barton,BarScharn) for both scalar and spinor QED.
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