Exact Casimir–Polder potential between a particle and an ideal metal cylindrical shell and the proximity force approximationV.B. Bezerra, E.R. Bezerra de Mello, G.L. Klimchitskaya, V.M. Mostepanenko and A.A. SaharianEur. Phys. J. C, 71 4 (2011) 1614DOI: https://doi.org/10.1140/epjc/s10052-011-1614-5