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artículo con referato
"Casimir Interaction Between Two Concentric Cylinders: Exact versus Semiclassical Results"
F.D. Mazzitelli, M.J. Sánchez, N.N. Scoccola and J. von Stecher
Phys. Rev. A 67(1) (2003) 013807/1-11
We compute the Casimir energy for two perfectly conducting, infinite, concentric cylinders. We first obtain the zero point electromagnetic energy using a semiclassical approximation that takes into account families of classical periodic orbits that reflect off both cylinders. Then we compute the exact energy using the mode-by-mode summation technique based on Cauchy's theorem. We analyze the validity of the semiclassical approximation and show that it improves the results obtained through the proximity theorem.
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