2007/10/30 by Robson B. Rodrigues, Robson B Rodrigues, Paulo A. Maia Neto +3
Physics and Astronomy · #Quantum Electrodynamics and Casimir Effect #Quantum and Classical Electrodynamics #Radioactive Decay and Measurement Techniques #quant-ph
paper · pdf · doi:10.1088/1751-8113/41/16/164019
published as Journal of Physics A 41 (2008) 164019 · 7 pages, 3 figures, contribution to QFEXT07 proceedings
arxiv created 2007/10/30 · openalex publication_date 2008/04/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We consider two parallel corrugated plates and show that a Casimir torque arises when the corrugation directions are not aligned. We follow the scattering approach and calculate the Casimir energy up to second order in the corrugation amplitudes, taking into account nonspecular reflections, polarization mixing and the finite conductivity of the metals. We compare our results with the proximity force approximation, which overestimates the torque by a factor 2 when taking the conditions that optimize the effect. We argue that the Casimir torque could be measured for separation distances as large as 1 µm.